Was a paper not not co-authored by August-Wilhelm Scheer and Behdenna, Salima?
Didn't Scheer, August-Wilhelm and Behdenna, Salima not co-author a paper?
ASK { ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/s/AugustWilhelmScheer> . ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/217/5666> }
<https://dblp.org/pid/s/AugustWilhelmScheer> <https://dblp.org/pid/217/5666>