Was a paper not not co-authored by Baby, Y. Rajan and Sumathy, Vinod Kumar Ramayyan?
Didn't Baby, Y. Rajan and Vinod Kumar Ramayyan Sumathy not co-author a paper?
ASK { ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/264/5330> . ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/264/5379> }
<https://dblp.org/pid/264/5330> <https://dblp.org/pid/264/5379>