@article{PismaZhETF.21.469,
    title = {Decay of initial steplike perturbation in the Korteweg-de Vries equation},
    author = {Khruslov, E. Ya.},
    journal = {Письма в ЖЭТФ},
    volume = {21},
    issue = {8},
    pages = {469},
    year = {1975},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_22461.shtml},
}