@article{PismaZhETF.47.312,
    title = {Polarized-optics contrast in $Y_1Ba_2Cu_3O_{7-x}$ high-temperature superconductors},
    author = {Vlasko-Vlasov, V. K. and Indenbom, M. V. and Osip'yan, Yu. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {47},
    issue = {6},
    pages = {312},
    year = {1988},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_16514.shtml},
}