@article{PismaZhETF.9.7,
    title = {Radiative Perturbation of Potassium Terms in a Ruby- laser Radiation Field.},
    author = {Kirin, Yu. M. and Kovalev, D. P. and Rautian, S. S. and Sokolovskii, R. I.},
    journal = {Письма в ЖЭТФ},
    volume = {9},
    issue = {1},
    pages = {7},
    year = {1969},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25016.shtml},
}