@article{PismaZhETF.16.216,
    title = {Low-frequency Maxima of the Density of State of Phonons Harmonics and Subharmonics of the Energy Gap of $Nb_3Sn$},
    author = {Vedeneev, S. I. and Golovashkin, A. I. and Motulevich, G. P.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {16},
    issue = {4},
    pages = {216},
    year = {1972},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26802.shtml},
}