@article{PismaZhETF.8.235,
    title = {Unusual Hydrogen Isotopic Effect in Crystals of Sodium Hydroselenite. Phase Diagram of the System Na($D_xH_{1-x})_3(SeO_3)_2$},
    author = {Shuvalov, L. A. and Ivanov, N. R. and Kirpichnikova, L. F. and Shchagina, N. M.},
    journal = {Письма в ЖЭТФ},
    volume = {8},
    issue = {5},
    pages = {235},
    year = {1968},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25984.shtml},
}