@article{PismaZhETF.13.305,
    title = {Two-step Selective Photoionization of Rybidium Atoms by Laser Radiation},
    author = {Ambartsumyan, R. V. and Kalinin, V. N. and Letokhov, V. S.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {13},
    issue = {6},
    pages = {305},
    year = {1971},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24089.shtml},
}