@article{PismaZhETF.53.157,
    title = {Temperature dependence of the first critical field of $YBa_2Cu_3O_x$ single crystals with various oxygen contents},
    author = {Moshchalkov, V. V. and Marin, C. and Henry, J. Y. and Rossat-Mignod, J. and Jacqout, J. F.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {53},
    issue = {3},
    pages = {157},
    year = {1991},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17380.shtml},
}