@article{PismaZhETF.24.103,
    title = {Monochromatic high-energy $\gamma$ rays from positron annihilation in single-crystal silicon},
    author = {Bochek, G. L. and Vit'ko, V. I. and Grishaev, I. A. and Kovalenko, G. D. and Kulubaba, V. I. and Morokhovskii, V. L. and Shramenko, B. I.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {24},
    issue = {2},
    pages = {103},
    year = {1976},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27668.shtml},
}