TY  - JOUR
AU  - S. M. Mazhar
TI  - Approximation by Positive Operators of Infinite Intervals
JO  - Mathematica balkanica
PY  - 1991
SP  - 99
VL  - 5
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MABA_1991_5_2_a2/
ID  - MABA_1991_5_2_a2
ER  -