@article{00645202, title = {On integral Bernstein operators in some classes of measurable bivariate functions.}, journal = {Georgian Mathematical Journal}, volume = {1}, year = {1994}, pages = {213-227}, doi = {10.1007/BF02254733}, zbl = {0808.41011}, language = {en}, url = {http://dml.mathdoc.fr/item/00645202} }
Taberski, Roman. On integral Bernstein operators in some classes of measurable bivariate functions.. Georgian Mathematical Journal, Tome 1 (1994) pp. 213-227. doi : 10.1007/BF02254733. http://gdmltest.u-ga.fr/item/00645202/