@article{PismaZhETF.26.429,
    title = {Multiphonon cascade process and secondary radiation bands in polar semiconductors},
    author = {Lang, I. G. and Pavlov, ST. and Yashin, G. Yu.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {26},
    issue = {6},
    pages = {429},
    year = {1977},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20916.shtml},
}