What are the papers written by Verbrugge, Clark and Vangheluwe, Hans together?
Find the papers written by Clark Verbrugge and Vangheluwe, Hans together.
SELECT DISTINCT ?answer WHERE { ?answer <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/v/ClarkVerbrugge> . ?answer <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/v/HansVangheluwe> }
<https://dblp.org/pid/v/ClarkVerbrugge> <https://dblp.org/pid/v/HansVangheluwe>