TY  - JOUR
AU  - V. V. Pospelov
TI  - Approximation of a function of two variables by the sum of products of functions of one variable in Sobolev spaces
JO  - Vestnik Moskovskogo universiteta. Matematika, mehanika
PY  - 1990
SP  - 6
EP  - 10
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VMUMM_1990_4_a1/
LA  - ru
ID  - VMUMM_1990_4_a1
ER  -