@article{PismaZhETF.46.199,
    title = {Atomic structure and superconductivity of $YBa_2Cu_3O_{7-x}$},
    author = {Simonov, V. I. and Molchanov, V. N. and Vainshtein, B. K.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {46},
    issue = {5},
    pages = {199},
    year = {1987},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_18555.shtml},
}