Didn't Sampath Rangarajan and Narayan Prasad not co-author a paper?
Was a paper not not co-authored by Rangarajan, Sampath and Narayan Prasad?
ASK { ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/67/43> . ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/49/5591> }
<https://dblp.org/pid/67/43> <https://dblp.org/pid/49/5591>