@article{PismaZhETF.47.196,
    title = {Proof of the metallic nature of the chemical bond and coexistence of magnetism and superconductivity in the $Y_{1-x}Fe_xBa_2Cu_3O_{\delta}$ system (0<x<0.5)},
    author = {Lyubutin, I. S. and Smirnovskaya, E. M. and Terziev, V. G. and Shapiro, A. Ya.},
    journal = {ðÉÓØÍÁ × öüôæ},
    volume = {47},
    issue = {4},
    pages = {196},
    year = {1988},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_16493.shtml},
}