Didn't Xiang Xiao and Pranav Vaidya not co-author a paper?
Was a paper not not co-authored by Xiao, Xiang and Vaidya, Pranav?
ASK { ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/19/5983> . ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/18/1669> }
<https://dblp.org/pid/19/5983> <https://dblp.org/pid/18/1669>