Didn't Quaresma, P. and Vanda S. not co-author a paper?
Was a paper not not co-authored by Pedro Quaresma and Vanda S.?
ASK { ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/71/4599> . ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/77/783> }
<https://dblp.org/pid/71/4599> <https://dblp.org/pid/77/783>