Was a paper not not co-authored by Amit A. Levy and Boneh, Dan?
Didn't Amit A. Levy and Boneh, Dan not co-author a paper?
ASK { ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/68/8881> . ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/b/DanBoneh> }
<https://dblp.org/pid/68/8881> <https://dblp.org/pid/b/DanBoneh>