The reference list for an doi code

Statement: 

The reference list for an doi $doi$ (e.g., 10.1038/nature01644) A limit of results per page $number$ (e.g.10)

Query: 
prefix npg: <http://ns.nature.com/terms/> prefix prism: <http://prismstandard.org/namespaces/basic/2.1/> prefix bibo: <http://purl.org/ontology/bibo/> prefix foaf: <http://xmlns.com/foaf/0.1/> select ?num ?name ?journal ?date ?volume ?spage ?link where { <http://dx.doi.org/??doi> npg:hasCitation [ npg:citeNum ?num ; npg:authorList [ rdf:first [ foaf:familyName ?name ] ] ; prism:publicationName ?journal ; prism:publicationDate ?date ; bibo:volume ?volume ; bibo:spage ?spage ; npg:hasLink [rdf:value ?link ] ] } order by ?num limit ??number