With which other authors has the author Jackie Chi Kit Cheung written papers?
Mention the co-authors of Jackie Chi Kit Cheung.
SELECT DISTINCT ?answer WHERE { ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/00/9012> . ?x <https://dblp.org/rdf/schema#authoredBy> ?answer FILTER(?answer != <https://dblp.org/pid/00/9012>) }
<https://dblp.org/pid/00/9012>