@article{PismaZhETF.58.340,
    title = {Сверхпроводимость в $HgBa_2Cd_2Cu_3O_{8+x}$ и $HgBa_2Ca_3Cu_4O_{10+x}$ с Т_с > 130 К},
    author = {Казаков, С. М. and Ицкевич, Е. С. and Богачева, Л. Н.},
    journal = {Письма в ЖЭТФ},
    volume = {58},
    issue = {5},
    pages = {340},
    year = {1993},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_4729.shtml},
}