@article{PismaZhETF.20.625,
    title = {Raman laser with lumped feedback},
    author = {Lugovoi, V. N.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {20},
    issue = {9},
    pages = {625},
    year = {1974},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27362.shtml},
}