@article{PismaZhETF.17.413,
    title = {Low-threshold Breakdown of Air Near a  Target by  $CO_2$  Radiation,  and the  Associated Large   Recoil   Momentum},
    author = {Barchukov, A. I. and Bunkin, F. V. and Konov, V. I. and Prokhorov, A. M.},
    journal = {Письма в ЖЭТФ},
    volume = {17},
    issue = {8},
    pages = {413},
    year = {1973},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_23581.shtml},
}