@article{DAN_1987_294_1_a12,
     author = {I. A. Beresnev and A. V. Nikolaev and V. S. Solov'ev and G. M. Shalashov},
     title = {Nonlinear propagation of a modulated
},
     journal = {Doklady Akademii Nauk},
     pages = {51--53},
     publisher = {mathdoc},
     volume = {294},
     number = {1},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1987_294_1_a12/}
}