@article{GDZPPN002541831,
title = {On the degree of approximation by positive linear operators using the B-summability method},
journal = {Revista colombiana de matematicas},
volume = {25},
year = {1991},
pages = {1-10},
zbl = {0772.41023},
url = {http://dml.mathdoc.fr/item/GDZPPN002541831}
}
Singh, S. P.; Ranadive, A. S. On the degree of approximation by positive linear operators using the B-summability method. Revista colombiana de matematicas, Tome 25 (1991) pp. 1-10. http://gdmltest.u-ga.fr/item/GDZPPN002541831/