1966/07/01 by N. D. Sen Gupta · 2 citations
paper · doi:10.1007/bf02740871
crossref issued 1966/07/01 · crossref published 1966/07/01 · crossref published-print 1966/07/01 · crossref created 2007/11/07 · crossref deposited 2019/05/18 · crossref indexed 2026/08/04