TY  - JOUR
AU  - M. K. Potapov
TI  - The study of certain classes of functions by means of ``angular''' approximation
JO  - Informatics and Automation
PY  - 1972
SP  - 256
EP  - 291
VL  - 117
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_1972_117_a13/
LA  - ru
ID  - TRSPY_1972_117_a13
ER  -