@article{DAN_1975_222_1_a13,
     author = {A. I. Leonov and Yu. Z. Miropol'skii},
     title = {On the instability of weakly nonlinear internal gravitational waves in an unbounded stratified liquid},
     journal = {Doklady Akademii Nauk},
     pages = {68--71},
     publisher = {mathdoc},
     volume = {222},
     number = {1},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_222_1_a13/}
}