@article{DAN_1963_152_2_a2,
     author = {V. P. Il'in},
     title = {Some inequalities between the norms of partial derivatives of functions of several variables},
     journal = {Doklady Akademii Nauk},
     pages = {262--265},
     publisher = {mathdoc},
     volume = {152},
     number = {2},
     year = {1963},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1963_152_2_a2/}
}