Select all UniProt entries that were integrated on a date

Statement: 

Select all UniProt entries that were integrated on a date $date$ (e.g., 2010-11-30) A limit number of results per page: $number$ (e.g., 10)

Query: 
PREFIX up:<http://purl.uniprot.org/core/> PREFIX xsd:<http://www.w3.org/2001/XMLSchema#> SELECT ?protein WHERE { ?protein a up:Protein . ?protein up:created '??date'^^xsd:date } limit ??number