@article{PismaZhETF.30.648,
    title = {Phase conjugation of light fields as a result of nonlinear interaction in saturable media},
    author = {Ivakin, E. V. and Koptev, V. G. and Lazaruk, A. M. and Petrovich, I. P. and Rubanov, A. S.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {30},
    issue = {10},
    pages = {648},
    year = {1979},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20718.shtml},
}