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@article{DAN_1972_207_2_a9, author = {B. P. Kufarev}, title = {Estimates of {Hausdorff} measures under mappings of the type $W_p^1$}, journal = {Doklady Akademii Nauk}, pages = {288--291}, publisher = {mathdoc}, volume = {207}, number = {2}, year = {1972}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1972_207_2_a9/} }
B. P. Kufarev. Estimates of Hausdorff measures under mappings of the type $W_p^1$. Doklady Akademii Nauk, Tome 207 (1972) no. 2, pp. 288-291. http://geodesic.mathdoc.fr/item/DAN_1972_207_2_a9/