@article{PismaZhETF.47.267,
    title = {Scanning-acoustic-microscopy study of the microstructure of a superconducting ceramic},
    author = {Levin, V. M. and Maev, R. G. and Senyushkina, T. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {47},
    issue = {5},
    pages = {267},
    year = {1988},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_16425.shtml},
}