@article{PismaZhETF.34.403,
    title = {Optical nonlinearity of pure lithium niobate crystals and hologram recording at low temperatures},
    author = {Odulov, S. G. and Oleinik, O. I. and Soskin, M. S.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {34},
    issue = {7},
    pages = {403},
    year = {1981},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_23219.shtml},
}