@article{PismaZhETF.56.35,
    title = {Anisotropic Stark effect at a deep center in silicon},
    author = {Bagraev, N. T. and Polovtsev, I. S.},
    journal = {Письма в ЖЭТФ},
    volume = {56},
    issue = {1},
    pages = {35},
    year = {1992},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_19373.shtml},
}