@article{PismaZhETF.20.696,
    title = {Spectroscopy within the Doppler line with the aid of a ring laser},
    author = {Belenov, E. M. and Danileiko, M. V. and Kozubovskii, V. R. and Nedavnii, A. P. and Shpak, M. T.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {20},
    issue = {11},
    pages = {696},
    year = {1974},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27386.shtml},
}