Project(BGP( <http://dx.doi.org/10.2307/30227373> <http://purl.org/dc/elements/1.1/creator> ?o .
             ?source <http://www.idemb.org/idemb#ref> ?ref .
             ?source <http://www.idemb.org/idemb#creator> ?creator .
             ?source <http://www.idemb.org/idemb#title> ?title .
             ?s <http://purl.org/ontology/bibo/cites> ?source .
             ?o <http://xmlns.com/foaf/0.1/name> ?name),
        {?s, ?name, ?title, ?creator, ?ref})