@article{PismaZhETF.58.809,
    title = {Anomalously narrow Coulomb gap},
    author = {Zabrodskii, A. G. and Andreev, A. G.},
    journal = {Письма в ЖЭТФ},
    volume = {58},
    issue = {10},
    pages = {809},
    year = {1993},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_18009.shtml},
}