@article{DAN_1986_288_1_a20,
     author = {P. I. Naumkin and I. A. Shishmarev},
     title = {On the existence and destruction of waves that can be described by},
     journal = {Doklady Akademii Nauk},
     pages = {90--95},
     publisher = {mathdoc},
     volume = {288},
     number = {1},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1986_288_1_a20/}
}