@article{MT_2015_18_2_a1,
     author = {A. Yu. Veretennikov and E. V. Veretennikova},
     title = {On partial derivatives of multivariate {Bernstein} polynomials},
     journal = {Matemati\v{c}eskie trudy},
     pages = {22--38},
     publisher = {mathdoc},
     volume = {18},
     number = {2},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MT_2015_18_2_a1/}
}