@article{PismaZhETF.54.104,
    title = {Breaking of a Riemann wave in dispersive hydrodynamics},
    author = {Gurevich, A. V. and Krylov, A. L. and El', G. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {54},
    issue = {2},
    pages = {104},
    year = {1991},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_18096.shtml},
}