@article{IM2_1990_35_1_a12,
     author = {O. I. Bogoyavlenskii},
     title = {Breaking {solitons.~II}},
     journal = {Izvestiya. Mathematics},
     pages = {245--248},
     year = {1990},
     volume = {35},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1990_35_1_a12/}
}