@article{DAN_1995_344_1_a4,
     author = {O. A. Timoshin},
     title = {Sharp inequalities between norms of partial derivatives of second},
     journal = {Doklady Akademii Nauk},
     pages = {20--22},
     publisher = {mathdoc},
     volume = {344},
     number = {1},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1995_344_1_a4/}
}