@article{PismaZhETF.19.385,
    title = {Formation of electron-neutral donor complexes in indirect optical transitions in germanium crystals},
    author = {Novikov, B. V. and Sokolov, N. S. and Kholodkevich, S. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {19},
    issue = {6},
    pages = {385},
    year = {1974},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27019.shtml},
}