TY  - JOUR
AU  - N. N. Pustovoitov
TI  - The orthoprojection widths of some classes of periodic functions of two variables with a~given majorant of the mixed moduli of continuity
JO  - Izvestiya. Mathematics 
PY  - 2000
SP  - 121
EP  - 141
VL  - 64
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_2000_64_1_a3/
LA  - en
ID  - IM2_2000_64_1_a3
ER  -