@article{PismaZhETF.12.475,
    title = {Parametric Generation of Light in High-efficiency Nonlinear $LiO_3$ and $\alpha-HIO_3$ Crystals},
    author = {Izrailenko, A. I. and Kovrigin, A. I. and Nikles, P. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {12},
    issue = {10},
    pages = {475},
    year = {1970},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26362.shtml},
}