Didn't Huadong Sun and D. Huang not co-author a paper?
Was a paper not not co-authored by H. Sun and Dan Huang?
ASK { ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/88/10176> . ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/41/3836> }
<https://dblp.org/pid/88/10176> <https://dblp.org/pid/41/3836>