@article{PismaZhETF.51.415,
    title = {Evolution of transport properties of ceramic $YBa_2Cu_3O_{7-x}$ as oxygen is removed by heat treatment},
    author = {Gantmakher, V. F. and Shovkun, D. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {51},
    issue = {8},
    pages = {415},
    year = {1990},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17290.shtml},
}