@article{PismaZhETF.16.298,
    title = {Amplification of Electromagnetic Field in Total Internal Reflection from a Region of Inverted Population},
    author = {Romanov, G. N. and Shakhidzhanov, S. S.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {16},
    issue = {5},
    pages = {298},
    year = {1972},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26829.shtml},
}