TY  - JOUR
AU  - L. P. Vlasov
TI  - Subspaces of finite codimension: The existence of elements of best approximation
JO  - Matematičeskie zametki
PY  - 1985
SP  - 78
EP  - 85
VL  - 37
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1985_37_1_a8/
LA  - ru
ID  - MZM_1985_37_1_a8
ER  -