@article{PismaZhETF.58.340,
    title = {Superconductivity with $T_c$>130 K in $HgBa_2Ca_2Cu_3O_{8+x}$ and $HgBa_2Ca_3Cu_4O_{10+x}$},
    author = {Kazakov, S. M. and Itskevich, E. S. and Bogacheva, L. N.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {58},
    issue = {5},
    pages = {340},
    year = {1993},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17929.shtml},
}