Did Michelle L. Wachs and Ahmad Haidar not co-author the paper 'An involution for signed Eulerian numbers'?
Have Michelle L. Wachs and Ahmad Haidar not co-authored the paper 'An involution for signed Eulerian numbers'?
ASK { <https://dblp.org/rec/journals/dm/Wachs92> <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/06/4633> . <https://dblp.org/rec/journals/dm/Wachs92> <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/89/8> FILTER NOT EXISTS { <https://dblp.org/rec/journals/dm/Wachs92> <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/06/4633> . <https://dblp.org/rec/journals/dm/Wachs92> <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/89/8> } }
<https://dblp.org/pid/06/4633> <https://dblp.org/pid/89/8> <https://dblp.org/rec/journals/dm/Wachs92>