@article{IZKAB_2015_5_a8,
     author = {E. V. Kyul},
     title = {Some results of the study of transformation},
     journal = {News of the Kabardin-Balkar scientific center of RAS},
     pages = {61--69},
     year = {2015},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IZKAB_2015_5_a8/}
}