@article{DAN_1982_265_4_a8,
     author = {P. I. Naumkin and I. A. Shishmarev},
     title = {On the breaking of waves for the {Whitham} equation},
     journal = {Doklady Akademii Nauk},
     pages = {809--811},
     year = {1982},
     volume = {265},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1982_265_4_a8/}
}