@article{PismaZhETF.14.108,
    title = {Optical Orientation of Free and Bound Excitons in Hexagonal Crystals},
    author = {Gross, E. F. and Ekimov, A. I. and Razbirin, B. S. and Safarov, V. I.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {14},
    issue = {2},
    pages = {108},
    year = {1971},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24561.shtml},
}