diff --git a/app/controllers/media_controller.rb b/app/controllers/media_controller.rb
index 6b2de06f36ec355a49f633a69248ec2379dbb5cd..0065ebbb88868a565e8c5b8fce84f4507f251175 100644
--- a/app/controllers/media_controller.rb
+++ b/app/controllers/media_controller.rb
@@ -5,7 +5,7 @@ class MediaController < ApplicationController
 
   def show
     @size = @blob.byte_size
-    if @blob.representable?
+    if @blob.variable?
       variant_service = VariantService.compute(@blob, params[:filename_with_transformations], params[:format])
       transformations = variant_service.transformations
       if transformations.empty?
diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 0acd1311ea2ad0b0fcb76724cf770850fcffaccc..0f7bd945573cc46681ff7774d2e582bd59044551 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -61,4 +61,8 @@ module ApplicationHelper
     I18nData.languages(I18n.locale)[iso_code.to_s.upcase].titleize
   end
 
+  def default_images_formats_accepted
+    Rails.application.config.default_images_formats.join(', ')
+  end
+
 end
diff --git a/app/services/importers/hash_to_person.rb b/app/services/importers/hash_to_person.rb
index 2b110e2418c62735d5b5c76429542fa0706f4206..273b9394d511ab8ac10f35239ad1781c58d440dc 100644
--- a/app/services/importers/hash_to_person.rb
+++ b/app/services/importers/hash_to_person.rb
@@ -101,7 +101,7 @@ module Importers
     def add_picture_if_possible!(person)
       return if @photo.nil?
       return if @person.picture.attached?
-      return unless @photo.end_with?('.jpg') || @photo.end_with?('.png') || @photo.end_with?('.svg')
+      return unless @photo.end_with?(*Rails.application.config.default_images_formats)
       begin
         file = URI.open @photo
         filename = File.basename @photo
diff --git a/app/views/admin/application/featured_image/_edit.html.erb b/app/views/admin/application/featured_image/_edit.html.erb
index 775b159544e391888b7c363e78422fb4a6f629ce..2abb7b21d459ef2a338f953c9b97a7610e1ebc6d 100644
--- a/app/views/admin/application/featured_image/_edit.html.erb
+++ b/app/views/admin/application/featured_image/_edit.html.erb
@@ -3,8 +3,8 @@
               as: :single_deletable_file,
               direct_upload: true,
               label: false,
-              hint: '5 Mo max, .jpg, .jpeg, .png, .svg',
-              input_html: { accept: '.jpg,.jpeg,.png,.svg' },
+              hint: t('default_images_hint', formats: default_images_formats_accepted),
+              input_html: { accept: default_images_formats_accepted },
               preview: true,
               resize: true %>
   <%= f.input :featured_image_alt,
diff --git a/app/views/admin/communication/blocks/components/image/_edit.html.erb b/app/views/admin/communication/blocks/components/image/_edit.html.erb
index d82dbabc839cf120ec588aefc234633657f58566..1aa10f55fc0861f0cb6532f09c8556822542e4e9 100644
--- a/app/views/admin/communication/blocks/components/image/_edit.html.erb
+++ b/app/views/admin/communication/blocks/components/image/_edit.html.erb
@@ -1,7 +1,7 @@
 <%
 label = t('admin.communication.blocks.components.image.input.label')
 remove = t('admin.communication.blocks.components.image.input.remove')
-hint = t('admin.communication.blocks.components.image.input.hint')
+hint = t('default_images_hint', formats: default_images_formats_accepted)
 %>
 <div class="mb-3">
   <div v-if="!<%= model %>.<%= property %>.id">
@@ -11,7 +11,7 @@ hint = t('admin.communication.blocks.components.image.input.hint')
     </label>
     <input  class="form-control"
             type="file"
-            accept="image/*"
+            accept="<%= default_images_formats_accepted %>"
             @change="onFileImageChange( $event, <%= model %>, '<%= property %>' )"
             data-size-limit="<%= Communication::Block::IMAGE_MAX_SIZE %>"
             :id="<%= dom_id.html_safe %>"
diff --git a/app/views/admin/communication/blocks/templates/image/_snippet.html.erb b/app/views/admin/communication/blocks/templates/image/_snippet.html.erb
index 98620f0205cd07ae74aff1401ba60ca2c5c6b8d3..61ce1e43fc1eefff24427fa4e26d6e36e4df1c2c 100644
--- a/app/views/admin/communication/blocks/templates/image/_snippet.html.erb
+++ b/app/views/admin/communication/blocks/templates/image/_snippet.html.erb
@@ -1,6 +1,2 @@
-<%
-blob = block.template.image_component.blob
-object = blob&.representable?  ? blob.representation(resize: 'x180')
-                               : blob
-%>
-<%= kamifusen_tag object, height: 90, alt: '', class: 'me-2' if object %>
+<% blob = block.template.image_component.blob %>
+<%= kamifusen_tag blob, height: 90, alt: '', class: 'me-2' if blob %>
diff --git a/app/views/admin/communication/blocks/templates/persons/_snippet.html.erb b/app/views/admin/communication/blocks/templates/persons/_snippet.html.erb
index 29ecbaa1744a7bd46181f29cd3d683b9817d0e5a..3e0c82046c9de8d7a4f358c8b062474d46d6a40d 100644
--- a/app/views/admin/communication/blocks/templates/persons/_snippet.html.erb
+++ b/app/views/admin/communication/blocks/templates/persons/_snippet.html.erb
@@ -4,7 +4,7 @@
   %>
   <span class="me-2">
     <% if person.best_picture.attached? %>
-      <%= kamifusen_tag person.best_picture, width: 90, class: 'img-fluid rounded-circle' %>
+      <%= kamifusen_tag person.best_picture, width: 90, height: 90, class: 'img-fluid rounded-circle' %>
     <% else %>
       <%= element.person %>
     <% end %>
diff --git a/app/views/admin/communication/extranets/_form.html.erb b/app/views/admin/communication/extranets/_form.html.erb
index 5d1895677ba9aaaf1314ab4a94b85de2b1a0368d..a21c722cf61e7fd5e9e32b14798eca60e28fb3cc 100644
--- a/app/views/admin/communication/extranets/_form.html.erb
+++ b/app/views/admin/communication/extranets/_form.html.erb
@@ -15,7 +15,8 @@
       <%= osuny_panel t('look_feel') do %>
         <%= f.input :logo,
                     as: :single_deletable_file,
-                    input_html: { accept: '.jpg,.jpeg,.png,.svg' },
+                    hint: t('default_images_hint', formats: default_images_formats_accepted),
+                    input_html: { accept: default_images_formats_accepted },
                     preview: 200,
                     direct_upload: true %>
         <%= f.input :favicon,
diff --git a/app/views/admin/communication/websites/agenda/events/_list.html.erb b/app/views/admin/communication/websites/agenda/events/_list.html.erb
index 055cea7a999dbc3bf72e8936575c372015b6f52b..98cdcba2140109d1816777ed041a26dd124a47ba 100644
--- a/app/views/admin/communication/websites/agenda/events/_list.html.erb
+++ b/app/views/admin/communication/websites/agenda/events/_list.html.erb
@@ -20,7 +20,7 @@
             </td>
             <td class="small"><%= render 'admin/communication/websites/agenda/events/dates', event: event %></td>
             <td>
-              <%= kamifusen_tag event.featured_image, width: 200 if event.featured_image.attached? %>
+              <%= kamifusen_tag event.featured_image, width: 100 if event.featured_image.attached? %>
             </td>
           </tr>
         <% end %>
diff --git a/app/views/admin/education/schools/_form.html.erb b/app/views/admin/education/schools/_form.html.erb
index 90e3d4368a990b38c7ee386b4350f9621bf4e836..1ec5198c7530695bd7e2b913e13c730a6fcca624 100644
--- a/app/views/admin/education/schools/_form.html.erb
+++ b/app/views/admin/education/schools/_form.html.erb
@@ -20,7 +20,7 @@
         <%= f.input :url %>
         <%= f.input :logo, 
                     as: :single_deletable_file,
-                    input_html: { accept: '.jpg,.jpeg,.png,.svg' },
+                    input_html: { accept: default_images_formats_accepted },
                     preview: 200,
                     direct_upload: true %>
       <% end %>
diff --git a/app/views/admin/layouts/themes/appstack/_top.html.erb b/app/views/admin/layouts/themes/appstack/_top.html.erb
index 075348819eac3c83d4bf0a7d1ca086bff6b31b03..7b66972776b38346821d0b0afb54354adcee085c 100644
--- a/app/views/admin/layouts/themes/appstack/_top.html.erb
+++ b/app/views/admin/layouts/themes/appstack/_top.html.erb
@@ -22,7 +22,7 @@
       <li>
         <a class="nav-link nav-link--last js-user-button" href="#">
           <% if current_user.picture.attached? %>
-            <%= kamifusen_tag current_user.picture, width: 40, class: 'avatar img-fluid rounded-circle' %>
+            <%= kamifusen_tag current_user.picture, width: 40, height: 40, class: 'avatar img-fluid rounded-circle' %>
           <% else %>
             <%= image_tag 'avatar.jpg', class: 'avatar img-fluid rounded-circle' %>
           <% end %>
diff --git a/app/views/admin/layouts/themes/pure/_nav.html.erb b/app/views/admin/layouts/themes/pure/_nav.html.erb
index 0e2edd453709f3da906729d0a26b0553451c8102..5b150ade558568f81efd17871fb5b46d3cf2b11c 100644
--- a/app/views/admin/layouts/themes/pure/_nav.html.erb
+++ b/app/views/admin/layouts/themes/pure/_nav.html.erb
@@ -45,7 +45,7 @@ context ||= :admin
         <div class="col-sm-6 col-md-4 col-lg-3">
           <%= link_to admin_user_path(current_user) do %>
             <% if current_user.picture.attached? %>
-              <%= kamifusen_tag current_user.picture, width: 100, class: 'image' %>
+              <%= kamifusen_tag current_user.picture, width: 100, height: 100, class: 'image' %>
             <% else %>
               <%= image_tag 'avatar.jpg', class: 'image', loading: :lazy %>
             <% end %>
diff --git a/app/views/admin/layouts/themes/pure/_panel.html.erb b/app/views/admin/layouts/themes/pure/_panel.html.erb
index a0b5ce45be1cf7798974127fe265a7e1609db670..46f1b88349807e8770184d9d584262d28c010dc3 100644
--- a/app/views/admin/layouts/themes/pure/_panel.html.erb
+++ b/app/views/admin/layouts/themes/pure/_panel.html.erb
@@ -1,5 +1,5 @@
 <section class="pure__section flex-fill position-relative <%= classes %>">
-  <%= kamifusen_tag image, class: 'img-fluid mb-3', loading: :lazy if image %>
+  <%= image_tag image, class: 'img-fluid mb-3', loading: :lazy if image %>
   <div class="d-lg-flex me-4 <%= 'mb-3' if small %>">
     <% if title %>
       <% if small %>
diff --git a/app/views/admin/university/organizations/_form.html.erb b/app/views/admin/university/organizations/_form.html.erb
index 5119d876f5de8ae08d3b0ba6ae627271d1397761..290735503f79b9fe5e6b31a12c2585a8d2ae4a1a 100644
--- a/app/views/admin/university/organizations/_form.html.erb
+++ b/app/views/admin/university/organizations/_form.html.erb
@@ -91,13 +91,13 @@
       <%= osuny_panel University::Organization.human_attribute_name('logos') do %>
         <%= f.input :logo,
                     as: :single_deletable_file,
-                    input_html: { accept: '.jpg,.jpeg,.png,.svg' },
+                    input_html: { accept: default_images_formats_accepted },
                     preview: 200,
                     resize: false,
                     direct_upload: true %>
         <%= f.input :logo_on_dark_background,
                     as: :single_deletable_file,
-                    input_html: { accept: '.jpg,.jpeg,.png,.svg' },
+                    input_html: { accept: default_images_formats_accepted },
                     preview: 200,
                     resize: false,
                     direct_upload: true %>
diff --git a/app/views/admin/university/people/_form.html.erb b/app/views/admin/university/people/_form.html.erb
index 1beeef56ce2f4d5b4ba88639feb1e6e18c3c90fd..157cb8266a211c722151f6ed187ab1db6b4560b6 100644
--- a/app/views/admin/university/people/_form.html.erb
+++ b/app/views/admin/university/people/_form.html.erb
@@ -114,7 +114,7 @@
         <%= f.input :picture,
                     as: :single_deletable_file,
                     label: false,
-                    input_html: { accept: '.jpg,.jpeg,.png,.svg' },
+                    input_html: { accept: default_images_formats_accepted },
                     preview: 200,
                     resize: 1,
                     direct_upload: true %>
diff --git a/app/views/admin/users/_form.html.erb b/app/views/admin/users/_form.html.erb
index ca83eefc3cd3b10f36b4357947ed2692f59a7faf..e00b89b2e2d2252abe79793b78879e73afe7de26 100644
--- a/app/views/admin/users/_form.html.erb
+++ b/app/views/admin/users/_form.html.erb
@@ -45,7 +45,7 @@
     <div class="col-md-4">
       <%= f.input :picture,
               as: :single_deletable_file,
-              input_html: { accept: '.jpg,.jpeg,.png,.svg' },
+              input_html: { accept: default_images_formats_accepted },
               preview: 200,
               resize: 1,
               direct_upload: true %>
diff --git a/app/views/devise/registrations/edit.html.erb b/app/views/devise/registrations/edit.html.erb
index b4142762eb6c9467ab611263674dba2b84344433..0120f5a8e0e681578a1696360230a9f32eabb3e8 100644
--- a/app/views/devise/registrations/edit.html.erb
+++ b/app/views/devise/registrations/edit.html.erb
@@ -36,7 +36,7 @@
       <%= f.input :mobile_phone %>
       <%= f.input :picture,
                   as: :single_deletable_file,
-                  input_html: { accept: '.jpg,.jpeg,.png,.svg' },
+                  input_html: { accept: default_images_formats_accepted },
                   preview: 200,
                   resize: 1,
                   direct_upload: true %>
diff --git a/app/views/devise/registrations/new.html.erb b/app/views/devise/registrations/new.html.erb
index ac997c4163d04e58e50e6d6cb2a4cd94772243e2..e0840a6cbe9824ffce82b3d59961e6910b92c8a8 100644
--- a/app/views/devise/registrations/new.html.erb
+++ b/app/views/devise/registrations/new.html.erb
@@ -45,7 +45,7 @@
       <%= f.input :mobile_phone %>
       <%= f.input :picture,
                         as: :single_deletable_file,
-                        input_html: { accept: '.jpg,.jpeg,.png,.svg' },
+                        input_html: { accept: default_images_formats_accepted },
                         preview: 200,
                         resize: 1,
                         direct_upload: true %>
diff --git a/app/views/extranet/account/edit.html.erb b/app/views/extranet/account/edit.html.erb
index 1bec66f13cd11f3b3e46d9b1c76db368498b8d66..68ea4442d42e5683edfb31ee619ac3b9e13d8484 100644
--- a/app/views/extranet/account/edit.html.erb
+++ b/app/views/extranet/account/edit.html.erb
@@ -14,7 +14,7 @@
                         label_method: lambda { |l| t("languages.#{l.iso_code.to_s}") } %>
       <%= f.input :picture,
               as: :single_deletable_file,
-              input_html: { accept: '.jpg,.jpeg,.png,.svg' },
+              input_html: { accept: default_images_formats_accepted },
               preview: 200,
               resize: 1,
               direct_upload: true %>
diff --git a/app/views/extranet/organizations/_form.html.erb b/app/views/extranet/organizations/_form.html.erb
index 21d1904fcb3aae321d04ec8d44ba9635165837bf..3dee125b46e5a2c2e9bafdea79a43fbcc1c991a0 100644
--- a/app/views/extranet/organizations/_form.html.erb
+++ b/app/views/extranet/organizations/_form.html.erb
@@ -75,13 +75,13 @@
       <h2><%= University::Organization.human_attribute_name('logos') %></h2>
       <%= f.input :logo,
                   as: :single_deletable_file,
-                  input_html: { accept: '.jpg,.jpeg,.png,.svg' },
+                  input_html: { accept: default_images_formats_accepted },
                   preview: 200,
                   resize: false,
                   direct_upload: true %>
       <%= f.input :logo_on_dark_background,
                   as: :single_deletable_file,
-                  input_html: { accept: '.jpg,.jpeg,.png,.svg' },
+                  input_html: { accept: default_images_formats_accepted },
                   preview: 200,
                   resize: false,
                   direct_upload: true %>
diff --git a/app/views/server/application/_top.html.erb b/app/views/server/application/_top.html.erb
index adb25cf1f34dc17891111bac69d88085008d5e0a..3d4b125a917e4196858450ff856c30a20437a838 100644
--- a/app/views/server/application/_top.html.erb
+++ b/app/views/server/application/_top.html.erb
@@ -18,7 +18,7 @@
       <li>
         <a class="nav-link nav-link--last js-user-button" href="#">
           <% if current_user.picture.attached? %>
-            <%= kamifusen_tag current_user.picture, widht: 40, class: 'avatar img-fluid rounded-circle' %>
+            <%= kamifusen_tag current_user.picture, width: 40, height: 40, class: 'avatar img-fluid rounded-circle' %>
           <% else %>
             <%= image_tag 'avatar.jpg', class: 'avatar img-fluid rounded-circle' %>
           <% end %>
diff --git a/app/views/server/universities/_form.html.erb b/app/views/server/universities/_form.html.erb
index f8cdb2a5e69ace41075890e86cbbe92d8dff7d03..ddc64561c37ffff14e3b9c6e513d1a8a1405e6f1 100644
--- a/app/views/server/universities/_form.html.erb
+++ b/app/views/server/universities/_form.html.erb
@@ -27,7 +27,7 @@
     <div class="col-md-4">
       <%= f.input :logo,
                   as: :single_deletable_file,
-                  input_html: { accept: '.jpg,.jpeg,.png,.svg' },
+                  input_html: { accept: default_images_formats_accepted },
                   preview: false,
                   direct_upload: true %>
     </div>
diff --git a/config/application.rb b/config/application.rb
index 61e85888512102d76d701355239fd8528a1ba531..56211b00f7252de3bac6846edc79f6c25d99de1e 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -61,6 +61,7 @@ module Osuny
     ]
 
     config.allowed_special_chars = '#?!,_@$%^&*+:;£µ-'
+    config.default_images_formats = ['.jpg', '.jpeg', '.png', '.svg']
 
     config.generators do |g|
       g.orm :active_record, primary_key_type: :uuid
diff --git a/config/locales/communication/contents/en.yml b/config/locales/communication/contents/en.yml
index bad502f6fd158edf97cb5abbabc7ca966a120358..648bfb84007f139780f8e23dd3bd0aaf0cda8e09 100644
--- a/config/locales/communication/contents/en.yml
+++ b/config/locales/communication/contents/en.yml
@@ -33,7 +33,6 @@ en:
             input:
               label: Image
               remove: Remove image
-              hint: 5 MB max, .png, .jpg, .svg
             alt:
               label: Alternative text
               placeholder: Enter alternative text
@@ -203,7 +202,6 @@ en:
                 image:
                   label: Image
                   remove: Remove image
-                  hint: 5 MB max, .png, .jpg, .svg
                 alt:
                   label: Alternative text
                   placeholder: Enter text description
diff --git a/config/locales/communication/contents/fr.yml b/config/locales/communication/contents/fr.yml
index aa35715c28a165c9aaa9a915ae978071b4ed958c..a16c67cb12bccdd3b96c19ac778bb8217010cec6 100644
--- a/config/locales/communication/contents/fr.yml
+++ b/config/locales/communication/contents/fr.yml
@@ -33,7 +33,6 @@ fr:
             input:
               label: Image
               remove: Enlever l'image
-              hint: 5 Mo max, .png, .jpg, .svg
             alt:
               label: Texte alternatif
               placeholder: Entrer la description textuelle
@@ -203,7 +202,6 @@ fr:
                 image:
                   label: Image
                   remove: Enlever l'image
-                  hint: 5 Mo max, .png, .jpg, .svg
                 alt:
                   label: Texte alternatif
                   placeholder: Entrer la description textuelle
diff --git a/config/locales/communication/en.yml b/config/locales/communication/en.yml
index 6cd50c56b90fb6f85137131d9504925fd33d90db..e9dd8b929567816e9909bf0faaa32cdeb9bfcff8 100644
--- a/config/locales/communication/en.yml
+++ b/config/locales/communication/en.yml
@@ -73,7 +73,7 @@ en:
         about_type: About
         color: Couleur
         cookies_policy: Cookies policy
-        favicon: Favicon (.png)
+        favicon: Favicon
         feature_alumni: Alumni
         feature_contacts: Directory
         feature_jobs: Job board
@@ -82,7 +82,7 @@ en:
         has_sso: Has SSO?
         home_sentence: Sentence displayed on homepage
         host: Domain
-        logo: Logo (.png, .jpg, .svg)
+        logo: Logo
         name: Name
         privacy_policy: Privacy policy
         registration_contact: Contact mail for registrations problems
@@ -403,6 +403,7 @@ en:
   simple_form:
     hints:
       communication_extranet:
+        favicon: '.png file only'
         host: Sans le protocole
         sso_button_label: "Default: Sign in via SSO"
       communication_website:
diff --git a/config/locales/communication/fr.yml b/config/locales/communication/fr.yml
index a61369e14711f2ba2e070c4b620217ffbce5dcb1..3a129d357b91cf7ddbf95cda0bf921613bfdf37b 100644
--- a/config/locales/communication/fr.yml
+++ b/config/locales/communication/fr.yml
@@ -73,7 +73,7 @@ fr:
         about_type: Type d'extranet
         color: Couleur
         cookies_policy: Politique de cookies
-        favicon: Favicon (.png)
+        favicon: Favicon
         feature_alumni: Alumni
         feature_contacts: Annuaire
         feature_jobs: Offres d'emploi
@@ -82,7 +82,7 @@ fr:
         has_sso: A un SSO ?
         home_sentence: Phrase affichée sur la home
         host: Domaine
-        logo: Logo (.png, .jpg, .svg)
+        logo: Logo
         name: Nom
         privacy_policy: Politique de confidentialité
         registration_contact: Mail de contact pour les problèmes d'inscription
@@ -403,6 +403,7 @@ fr:
   simple_form:
     hints:
       communication_extranet:
+        favicon: 'Fichier .png uniquement'
         host: Sans le protocole
         sso_button_label: "Par défaut : Se connecter en SSO"
       communication_website:
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 2ec222ce2816f67d31b392e96de30e8ced569b55..c4d40f270f9cb11cb4df09a1850dcffb47b1863c 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -162,6 +162,7 @@ en:
     formats:
       birthday: "%B %d"
   delete: Delete
+  default_images_hint: "5 Mb max, %{formats}"
   devise:
     failure:
       invalid: "Invalid email or password."
diff --git a/config/locales/fr.yml b/config/locales/fr.yml
index c4927504844389b1a77e879e35b5de392bb73b0d..bd8323c6fbace4244be7a38e5e476a9a3fbc8ca5 100644
--- a/config/locales/fr.yml
+++ b/config/locales/fr.yml
@@ -161,6 +161,7 @@ fr:
   date:
     formats:
       birthday: "%d %B"
+  default_images_hint: "5 Mo max, %{formats}"
   delete: Supprimer
   devise:
     failure:
diff --git a/config/locales/research/en.yml b/config/locales/research/en.yml
index 8d19acee493cd0da411c8df079b516d3ed55d1d0..da5bce56385159fd5c8140d435eaac430cca089c 100644
--- a/config/locales/research/en.yml
+++ b/config/locales/research/en.yml
@@ -131,5 +131,3 @@ en:
       research_journal_paper:
         authors_list: Type the authors list directly in this field if you don't want to use the checkboxes above
         doi: "You can type the DOI identifier without https://, for example “10.19182/perspective/31918”"
-      research_journal_volume:
-        cover: JPG or PNG file
diff --git a/config/locales/research/fr.yml b/config/locales/research/fr.yml
index 915c14779b6bc92b2ed25f0863bba98e26978a67..bb29775ad7aafef35ced5a073a6f1ac5ab72139f 100644
--- a/config/locales/research/fr.yml
+++ b/config/locales/research/fr.yml
@@ -130,5 +130,3 @@ fr:
       research_journal_paper:
         authors_list: Tapez la liste des auteurs si vous n'utilisez pas les cases à cocher “Auteur·e·s” ci-dessus
         doi: "Vous pouvez saisir l'identifiant DOI sans https://, par exemple “10.19182/perspective/31918”"
-      research_journal_volume:
-        cover: Fichier JPG ou PNG