@article{PismaZhETF.10.105,
    title = {Determination of the Level Widths of Gas Molecules by the Photon-echo Method},
    author = {Alekseev, A. I. and Evseev, I. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {10},
    issue = {2},
    pages = {105},
    year = {1969},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25695.shtml},
}