@article{PismaZhETF.53.51,
    title = {Observation of anomalies in the spectrum and angular distribution of the $\gamma$-ray emission by ultrarelativistic electrons in thick crystals},
    author = {Antipenko, A. P. and Blazhevich, S. V. and Bochek, G. L. and Kulibaba, V. I. and Maslov, N. I and Nasonov, N. N. and Ovchinnik, V. D. and Fomin, S. P. and Shramenko, B. I. and Shul'ga, H. F.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {53},
    issue = {1},
    pages = {51},
    year = {1991},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17352.shtml},
}