@article{PismaZhETF.22.83,
    title = {Edge luminescence of excitons in MgO crystals in the vacuum ultraviolet region of the spectrum},
    author = {Valbis, Ya. A. and Kalder, K. A. and Kuusmann, I. L. and Lushchik, Ch. B. and Ratas, A. A. and Rachko, Z. A. and Springis, M. E. and Tift, V. M.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {22},
    issue = {2},
    pages = {83},
    year = {1975},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_23261.shtml},
}