@article{PismaZhETF.15.580,
    title = {Concerning the Feasibility of a $\gamma$ Laser Based on Radioactive Crystals},
    author = {Khokhlov, R. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {15},
    issue = {9},
    pages = {580},
    year = {1972},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26664.shtml},
}