TY  - JOUR
AU  - Yu. A. Kaz'min
TI  - The closures of the linear spans of two systems of functions
JO  - Doklady Akademii Nauk
PY  - 1977
SP  - 535
EP  - 537
VL  - 236
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1977_236_3_a4/
LA  - ru
ID  - DAN_1977_236_3_a4
ER  -