Was a paper not not co-authored by Wu, J. and Albert C. S. Chung?
Didn't Jue Wu and Albert C. S. Chung not co-author a paper?
ASK { ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/89/2125> . ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/45/6335> }
<https://dblp.org/pid/89/2125> <https://dblp.org/pid/45/6335>