@article{PismaZhETF.7.281,
    title = {Exciton Luminescence in $Cu_2O$ Crystals},
    author = {Gross, E. F. and Kreihgol'd, F. I.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {7},
    issue = {8},
    pages = {281},
    year = {1968},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25642.shtml},
}