@article{PismaZhETF.41.328,
    title = {A class of nonlinear systems with memory},
    author = {Vedenov, A. A. and Levchenko, E. B.},
    journal = {Письма в ЖЭТФ},
    volume = {41},
    issue = {8},
    pages = {328},
    year = {1985},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_22353.shtml},
}