@article{PismaZhETF.49.287,
    title = {Ground state of the superconducting compound $YBa_2Cu_3O_x$ at x<6.5},
    author = {Aleksandrov, I. V. and Volodin, A. P. and Makarenko, I. N. and Svistov, L. E. and Stishov, S. M.},
    journal = {ðÉÓØÍÁ × öüôæ},
    volume = {49},
    issue = {5},
    pages = {287},
    year = {1989},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_16903.shtml},
}