A theorem of Meir-Keeler type revisited. Cho, Y.J.; Murthy, P.P.; Jungck, G. — 2000 International Journal of Mathematics and Mathematical Sciences
Common fixed points of set-valued mappings. Singh, M.R.; Singh, L.S.; Murthy, P.P. — 2001 International Journal of Mathematics and Mathematical Sciences
A common fixed point theorem of Meir and Keeler type. Cho, Y.J.; Murthy, P.P.; Jungck, G. — 1993 International Journal of Mathematics and Mathematical Sciences