TY  - JOUR
AU  - E. V. Oshman
TI  - Chebyshev sets, continuity of the metric projection and certain geometric properties of the unit sphere in a~Banach space
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 1969
SP  - 38
EP  - 46
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_1969_4_a7/
LA  - ru
ID  - IVM_1969_4_a7
ER  -