@article{PismaZhETF.2.175,
    title = {Coherent Excitation of Optical Spectra of Atoms Passing Through a Crystal},
    author = {Okorokov, V. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {2},
    issue = {4},
    pages = {175},
    year = {1965},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24492.shtml},
}