@article{DE_1985_21_3_a16,
     author = {P. I. Naumkin and I. A. Shishmarev},
     title = {Breaking of waves for the {Whitham} equation with singular kernel. {I}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {499--508},
     publisher = {mathdoc},
     volume = {21},
     number = {3},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1985_21_3_a16/}
}