@article{RM_1979_34_1_a8,
     author = {M. I. Ganzburg},
     title = {The~theorems of {Jackson} and {Bernstein} in~$R^m$},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {221--222},
     publisher = {mathdoc},
     volume = {34},
     number = {1},
     year = {1979},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1979_34_1_a8/}
}