Cauchy Sequences in Quasi-Pseudo-Metric Spaces. I.L. Reilly; P.V. Subrahmanyam — 1982 Monatshefte für Mathematik
Existence of solutions for equations involving iterated functional series. Murugan, V.; Subrahmanyam, P.V. — 2005 Fixed Point Theory and Applications [electronic only]
A Newton-type method and its application. Vijesh, V.Antony; Subrahmanyam, P.V. — 2006 International Journal of Mathematics and Mathematical Sciences