@article{PismaZhETF.48.140,
    title = {Operation of a massive $YBa_2Cu_3O_x$   SQUID},
    author = {Zakosarenko, V. M. and Il'ichev, E. V. and Tulin, V. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {48},
    issue = {3},
    pages = {140},
    year = {1988},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_16664.shtml},
}