@article{IZKAB_2018_6-3_a0,
     author = {L. A. Lyutikova and E. V. Shmatova},
     title = {On the use of variable predicates to formalize},
     journal = {News of the Kabardin-Balkar scientific center of RAS},
     pages = {5--10},
     year = {2018},
     number = {6-3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IZKAB_2018_6-3_a0/}
}