@article{PismaZhETF.17.649,
    title = {EPR of Free Radical DPPH at Infralow Temperatures},
    author = {Kessel, A. R. and Kozyrev, B. M. and 'yan, Kharakhash. E. G. and Khlebnikov, S. Ya. and Shakirov, Sh. Z.},
    journal = {Письма в ЖЭТФ},
    volume = {17},
    issue = {12},
    pages = {649},
    year = {1973},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_23871.shtml},
}