@article{PismaZhETF.37.459,
    title = {Excitons in a crystal with a superionic transition},
    author = {Akopyan, I. Kh. and Monov, A. E. and Novikov, B. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {37},
    issue = {10},
    pages = {459},
    year = {1983},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_22857.shtml},
}