@article{DAN_1987_295_2_a19,
     author = {V. V. Avilov and I. M. Krichever and S. P. Novikov},
     title = {Evolution of the {Whitham} zone in the {Korteweg--de} {Vries} theory},
     journal = {Doklady Akademii Nauk},
     pages = {345--349},
     publisher = {mathdoc},
     volume = {295},
     number = {2},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1987_295_2_a19/}
}