@article{PismaZhETF.17.268,
    title = {Decay  of  Initial   Discontinuity  in  the  Korteweg-de  Vries  Equation},
    author = {Gurevich, A. V. and Pitaevskii, L. P.},
    journal = {Письма в ЖЭТФ},
    volume = {17},
    issue = {5},
    pages = {268},
    year = {1973},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_23557.shtml},
}