@article{PismaZhETF.47.162,
    title = {Isotopic effect in the Raman spectra of orthorhombic and tetragonal $YBa_2Cu_3O_{7-\delta}$ single crystals},
    author = {Bazhenov, A. V. and Gasparov, L V. and Kulakovskii, V. D. and Misochko, O. V. and Osip'yan, Yu. A. and Timofeev, V. B.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {47},
    issue = {3},
    pages = {162},
    year = {1988},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_16483.shtml},
}