@article{IZKAB_2017_6-2_a20,
     author = {I. A. Pshenokova and M. I. Anchekov and V. A. Denisenko},
     title = {Formal statement of the tasks},
     journal = {News of the Kabardin-Balkar scientific center of RAS},
     pages = {191--196},
     year = {2017},
     number = {6-2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IZKAB_2017_6-2_a20/}
}