Mention the co-authors of Walke, B..
Who are the co-authors of Walke, B.?
SELECT DISTINCT ?answer WHERE { ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/w/BernhardWalke> . ?x <https://dblp.org/rdf/schema#authoredBy> ?answer FILTER(?answer != <https://dblp.org/pid/w/BernhardWalke>) }
<https://dblp.org/pid/w/BernhardWalke>