=Volume=
{{Volume
|number=2955
|storemode=property
|wikidataid=Q113542000
|title=Proceedings of the Perspectives on the Evaluation of Recommender Systems Workshop 2021
|acronym=Perspectives 2021
|url=http://ceur-ws.org/Vol-2955/
|date=2021-09-27
|dblp=conf/recsys/2021perspectives
|k10plus=1779769075
|urn=urn:nbn:de:0074-1155-8
}}