TY  - JOUR
AU  - V. P. Sizhuk
TI  - Neighborhoods of functions that are convex with respect to symmetric points
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 1999
SP  - 69
EP  - 73
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_1999_6_a9/
LA  - ru
ID  - IVM_1999_6_a9
ER  -