%0 Journal Article
%A N. Babačev
%T Common fixed point theorem for four mappings defined on
 Menger PM-spaces with nonlinear contractive type condition
%J Novi Sad Journal of Mathematics
%D 2013
%P 39-49
%V 43
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/NSJOM_2013_43_2a_3/
%F NSJOM_2013_43_2a_3