@article{PismaZhETF.21.472,
    title = {Experimental observation of the fine structure of electron-nuclear magnetic resonance},
    author = {Ignatchenko, V. A. and Salanskii, N. M. and Mal'tsev, V. K. and Tsifrinovich, V. I.},
    journal = {Письма в ЖЭТФ},
    volume = {21},
    issue = {8},
    pages = {472},
    year = {1975},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_22462.shtml},
}