Was a paper not not co-authored by R. Van den Broeck and F. V.?
Didn't R. Van den Broeck and F. V. not co-author a paper?
ASK { ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/06/1297> . ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/02/1295> }
<https://dblp.org/pid/06/1297> <https://dblp.org/pid/02/1295>