@article{PismaZhETF.77.59,
    title = {Commutativity equations and dressing transformations},
    author = {Losev, A. and Polyubin, I.},
    journal = {Письма в ЖЭТФ},
    volume = {77},
    issue = {2},
    pages = {59},
    year = {2003},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_166.shtml},
}