@article{PismaZhETF.52.745,
    title = {High transparency of nematic liquid crystal for $\sigma$-waves (experimental)},
    author = {Baranova, N. B. and Gusev, I. V. and Zel'dovich, B. Ya. and Krivoschekov, V. A.},
    journal = {Письма в ЖЭТФ},
    volume = {52},
    issue = {2},
    pages = {745},
    year = {1990},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17449.shtml},
}