@article{DAN_1995_345_1_a3,
     author = {A. P. Makhmudov and M. M. Rasulov},
     title = {Necessary conditions for the existence of a solution of some},
     journal = {Doklady Akademii Nauk},
     pages = {19--21},
     publisher = {mathdoc},
     volume = {345},
     number = {1},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1995_345_1_a3/}
}