@article{DAN_1973_213_1_a2,
     author = {I. A. Volynets},
     title = {Distortion theorems for mappings of class $BL$},
     journal = {Doklady Akademii Nauk},
     pages = {16--18},
     publisher = {mathdoc},
     volume = {213},
     number = {1},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1973_213_1_a2/}
}