@article{PismaZhETF.47.144,
    title = {Study of the energy gap in superconductors of the Y-Ba-Cu-O system by the IR reflection method},
    author = {Abel', E. V. and Bagaev, V. S. and Basov, D. N. and El'tsev, Yu. F. and Ivanenko, O. M. and Mitsen, K. V. and Omel'yanovskii, O. E. and Pechen', E. V. and Plotnikov, A. F. and Poyarkov, A. G.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {47},
    issue = {3},
    pages = {144},
    year = {1988},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_16519.shtml},
}