TY  - JOUR
AU  - V. V. Pospelov
TI  - The error of approximation of a function of two variables by sums of the products of functions of one variable
JO  - Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki
PY  - 1978
SP  - 1307
EP  - 1308
VL  - 18
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZVMMF_1978_18_5_a24/
LA  - ru
ID  - ZVMMF_1978_18_5_a24
ER  -