%0 Journal Article
%A Czerwik, S.
%T Contraction mappings in $b$-metric spaces
%J Communications in Mathematics
%D 1993
%P 5-11
%V 1
%N 1
%U http://geodesic.mathdoc.fr/item/COMIM_1993_1_1_a1/
%G en
%F COMIM_1993_1_1_a1