TY  - JOUR
AU  - A. A. Zhensykbaev
TI  - Best quadrature formula for some classes of periodic differentiable functions
JO  - Izvestiya. Mathematics 
PY  - 1977
SP  - 1055
EP  - 1071
VL  - 11
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_1977_11_5_a7/
LA  - en
ID  - IM2_1977_11_5_a7
ER  -