@article{PismaZhETF.7.111,
    title = {Photoelectric Spectroscopy of Impurities in-Semiconductors},
    author = {Lifshitz, T. M. and Likhtman, N. P. and Sidorov, V. I.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {7},
    issue = {3},
    pages = {111},
    year = {1968},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25591.shtml},
}