Jesús De La Cal, Javier Cárcamo, Ana M. Valle. A best constant for bivariate Bernstein and Szász-Mirakyan operators. Journal of Approximation Theory, 123(1):117-124, 2003. [doi]
@article{CalCV03,
title = {A best constant for bivariate Bernstein and Szász-Mirakyan operators},
author = {Jesús De La Cal and Javier Cárcamo and Ana M. Valle},
year = {2003},
doi = {10.1016/S0021-9045(03)00086-8},
url = {http://dx.doi.org/10.1016/S0021-9045(03)00086-8},
researchr = {https://researchr.org/publication/CalCV03},
cites = {0},
citedby = {0},
journal = {Journal of Approximation Theory},
volume = {123},
number = {1},
pages = {117-124},
}