@article{3191,
author = {Cao, Jia-Ding and Gonska, Heinz H.},
title = {Pointwise estimates for modified positive linear operators},
journal = {Portugaliae mathematica},
volume = {46},
year = {1989},
pages = {401-430},
zbl = {0683.41031},
mrnumber = {1032511},
language = {en},
url = {http://dml.mathdoc.fr/item/3191}
}
Cao, Jia-Ding; Gonska, Heinz H. Pointwise estimates for modified positive linear operators. Portugaliae mathematica, Tome 46 (1989) pp. 401-430. http://gdmltest.u-ga.fr/item/3191/