@article{ZNSL_1995_224_a8,
     author = {R. F. Bikbaev},
     title = {Complex {Whitham-deformations} in problems with {\textquotedblleft}integrable instability{\textquotedblright}},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {87--121},
     year = {1995},
     volume = {224},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1995_224_a8/}
}