TY  - JOUR
AU  - Sever S. Dragomir
TI  - Best Approximation in Linear Spaces Endowed with Subinner Product
JO  - Mathematica balkanica
PY  - 1991
SP  - 271
VL  - 5
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MABA_1991_5_4_a0/
ID  - MABA_1991_5_4_a0
ER  -