Didn't Markus Wacker and Jonas Bruschke not co-author a paper?
Was a paper not not co-authored by Markus Wacker and Jonas Bruschke?
ASK { ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/41/2761> . ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/187/9160> }
<https://dblp.org/pid/41/2761> <https://dblp.org/pid/187/9160>