@article{PismaZhETF.21.375,
    title = {Separation of sulfur isotopes with enrichment coefficient > $10^3$ through action of $CO_2$ laser radiation on $SF_6$},
    author = {Ambartsumyan, R. V. and Gorokhov, Yu. A. and Letokhov, V. S. and Makarov, G. N.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {21},
    issue = {6},
    pages = {375},
    year = {1975},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_22332.shtml},
}