@article{PismaZhETF.15.705,
    title = {Optical Observation of Impurity Bands in Disordered Binary Alloys Based on Nickel},
    author = {Krinchik, G. S and Zaitseva, R. S.},
    journal = {Письма в ЖЭТФ},
    volume = {15},
    issue = {12},
    pages = {705},
    year = {1972},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26697.shtml},
}