@article{DAN_1980_251_1_a18,
     author = {V. N. Blashchuk and N. F. Pilipetskiǐ and V. V. Shkunov},
     title = {Four-wave interaction as a controlled frequency filter},
     journal = {Doklady Akademii Nauk},
     pages = {70--74},
     publisher = {mathdoc},
     volume = {251},
     number = {1},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1980_251_1_a18/}
}