diff --git a/biblio-tools/examples.http b/biblio-tools/examples.http
index cac4312..c66ca1f 100644
--- a/biblio-tools/examples.http
+++ b/biblio-tools/examples.http
@@ -180,3 +180,15 @@
   { "id":4,   "value": ""}
 ]
 ###
+
+# hal/works/expand
+POST {{baseUrl}}/v1/hal/works/expand?indent=true HTTP/1.1
+Content-Type: application/json
+
+[
+  { "id":1,   "value": "10.1016/S0047-6374(98)00099-2"},
+  { "id":2,   "value": "10.35562/arabesques.1222"},
+  { "id":3,   "value": "10.3324/haematol.2016.148908"},
+  { "id":4,   "value": ""}
+]
+###
diff --git a/biblio-tools/v1/hal/works/expand.ini b/biblio-tools/v1/hal/works/expand.ini
new file mode 100644
index 0000000..8867278
--- /dev/null
+++ b/biblio-tools/v1/hal/works/expand.ini
@@ -0,0 +1,115 @@
+# OpenAPI Documentation - JSON format (dot notation)
+mimeType = application/json
+
+post.operationId = post-v1-crossref-works-expand
+post.description = Récupération des métadonnées associées à un DOI dans HAL
+post.summary = Récupération à partir d'un tableau d'objets avec à minima un champ value contenant le DOI
+post.tags.0 = biblio-tools
+post.requestBody.content.application/json.example.0.id = 1
+post.requestBody.content.application/json.example.0.value = 10.35562/arabesques.1222
+post.requestBody.content.application/json.schema.$ref = #/components/schemas/JSONStream
+post.requestBody.required = true
+post.responses.default.content.application/json.example.0.id = 1
+post.responses.default.content.application/json.example.0.value = { ... }
+post.responses.default.content.application/json.schema.$ref =  #/components/schemas/JSONStream
+post.responses.default.description = Les prefixes DOI en version textuel
+post.parameters.0.description = Indenter le JSON résultant
+post.parameters.0.in = query
+post.parameters.0.name = indent
+post.parameters.0.schema.type = boolean
+
+# Necessary plugins
+[use]
+plugin = basics
+
+# Flow configuration
+[JSONParse]
+separator = *
+
+# Quelques paramètres modifiables si besoin
+[env]
+path = size
+value = 10
+
+path = indent
+value = true
+
+# Début du traitement par lot
+[group]
+size = env('size')
+
+# Création d'une requete avec une liste d'identifiants
+#?q=doiId_s:(10.3324/haematol.2016.148908%20OR%2010.35562/arabesques.1222)&wt=json&fl=label_xml
+[replace]
+path = output.0.q
+value = self().map('value').filter(Boolean).map(JSON.stringify).join(' OR ').thru(allIdentifiers => `doiId_s:(${allIdentifiers})`)
+
+path = output.0.wt
+value = json
+
+path = output.0.fl
+value = label_xml
+
+path = output.0.rows
+value = env('size')
+
+path = input
+value = self()
+
+[map]
+path = output
+
+# Envoi de la requete
+[map/URLStream]
+url = https://api.archives-ouvertes.fr/search/
+json = true
+path = response.docs.*
+timeout = 30000
+retries = 3
+noerror = false
+
+
+# Création d'un objet réponse
+[map/exchange]
+value = get('label_xml')
+
+[map/spawn]
+[map/spawn/XMLParse]
+separator = /TEI
+[map/spawn/OBJFlatten]
+[map/spawn/replace]
+path = id1
+value = get('text/body/listBibl/biblFull/sourceDesc/biblStruct/idno').filter({type: 'doi'}).first().get('$t')
+
+path = id2
+value = get('text/body/listBibl/biblFull/sourceDesc/biblStruct/idno/$t')
+
+path = value
+value = self() 
+
+[map/spawn/replace]
+path = id
+value = fix(self.id1, self.id2).filter(Boolean).first()
+
+path = value
+value = get('value')
+
+
+# Croisements des resultats et des dois
+[exchange]
+value = get('input').map((i) => ({ ...i, value:_.get(_.find(self.output, {id:i.value}), 'value') }))
+
+# Fin du traitement par lot
+[ungroup]
+
+# On marque les réponses qui n'ont pas abouti
+[swing]
+test = has('value.xmlns$hal')
+reverse = true
+
+[swing/assign]
+path = value
+value = fix('n/a')
+
+[dump]
+indent = env('indent', false)