@article{PismaZhETF.66.777,
    title = {Effects of two strong fields in resonant four-wave mixing},
    author = {Babin, S. A. and Podivilov, E. V. and Shapiro, D. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {66},
    issue = {12},
    pages = {777},
    year = {1997},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_15552.shtml},
}