Didn't Yongming Li and Y. Wang not co-author a paper?
Was a paper not not co-authored by Yongming L. and Yongbing Wang?
ASK { ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/39/2889> . ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/42/7569> }
<https://dblp.org/pid/39/2889> <https://dblp.org/pid/42/7569>