TY - JOUR AU - B. P. Kufarev TI - Estimates of Hausdorff measures under mappings of the type $W_p^1$ JO - Doklady Akademii Nauk PY - 1972 SP - 288 EP - 291 VL - 207 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1972_207_2_a9/ LA - ru ID - DAN_1972_207_2_a9 ER -