On the curvature collineation in Finsler space. Singh, S.P. — 1984 Publications de l'Institut Mathématique. Nouvelle Série
The best approximation and an extension of a fixed point theorem of F. E. Browder. Sehgal, V.M.; Singh, S.P. — 1995 International Journal of Mathematics and Mathematical Sciences
On some fixed point theorems. Roux, D.; Singh, S.P. — 1989 International Journal of Mathematics and Mathematical Sciences