@article{DAN_1984_277_6_a7,
     author = {M. A. Kovalevsky},
     title = {Difference equations for determination of multipliers of a relation},
     journal = {Doklady Akademii Nauk},
     pages = {1315--1318},
     year = {1984},
     volume = {277},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1984_277_6_a7/}
}