@article{PismaZhETF.31.464,
    title = {Absorption edge of a semiconductor NaX-Se superlattice},
    author = {Bogomolov, V. N. and Poborchii, V. V. and Kholodkevich, S. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {31},
    issue = {8},
    pages = {464},
    year = {1980},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20452.shtml},
}