@article{PismaZhETF.44.5,
    title = {Anomalously large isotopic effect observed in the conversion of different nuclear-spin modifications of $CH_3F$ molecules},
    author = {Bakarev, A. E. and Chapovski, P. L.},
    journal = {Письма в ЖЭТФ},
    volume = {44},
    issue = {1},
    pages = {5},
    year = {1986},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20788.shtml},
}