@article{PismaZhETF.3.54,
    title = {Interaction of Traveling Waves in a Ring Laser},
    author = {Belenov, E. M. and Markin, E. P. and Morozov, V. N. and Oraevskii, A. N.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {3},
    issue = {1},
    pages = {54},
    year = {1966},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24686.shtml},
}