@article{PismaZhETF.4.92,
    title = {The Photoreduction $TR^{3+}\to TR^{2+}$ in Fluorite Crystals},
    author = {Kaminskii, A. A. and Osiko, V. V. and Fursikov, M. M.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {4},
    issue = {3},
    pages = {92},
    year = {1966},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24840.shtml},
}