@article{DAN_1971_198_3_a15,
     author = {S. D. Klyachko},
     title = {Use of transformations with a constant change of area for modeling in the problem of torsion},
     journal = {Doklady Akademii Nauk},
     pages = {547--550},
     year = {1971},
     volume = {198},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1971_198_3_a15/}
}