@article{PismaZhETF.49.323,
    title = {Pseudoecho in the nuclear magnetic resonance of a solid},
    author = {Sergeev, N. A. and Sapiga, A. V. and Ryabushkin, D. S.},
    journal = {Письма в ЖЭТФ},
    volume = {49},
    issue = {6},
    pages = {323},
    year = {1989},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_16913.shtml},
}