TY  - JOUR
AU  - M. L. Katkov
TI  - Generalization of istratescu's theorem on contractive mappings in metric spaces
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 1979
SP  - 73
EP  - 82
VL  - 83
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZNSL_1979_83_a3/
LA  - ru
ID  - ZNSL_1979_83_a3
ER  -