@article{PismaZhETF.12.505,
    title = {Spontaneous Parametric Emission of the $\alpha-HIO_3$ Crystal},
    author = {Dobrzhanskii, G. F. and Kitaeva, V. F. and Kuleskii, L. A. and Polivanov, Yu. N. and Poluektov, S. N. and Prokhorov, A. M. and Sobolev, N. N.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {12},
    issue = {11},
    pages = {505},
    year = {1970},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26370.shtml},
}