@article{DAN_1974_216_5_a10,
     author = {S. V. Khabirov},
     title = {On some quasi-conformal mappings belonging to a {Lie} pseudogroup},
     journal = {Doklady Akademii Nauk},
     pages = {998--1000},
     year = {1974},
     volume = {216},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1974_216_5_a10/}
}