PACS:01.10.Fv DOI:10.1070/PU1979v022n03ABEH005430 URL: https://ufn.ru/en/articles/1979/3/h/ Citation: Kumakhov M A "Spontaneous and induced emission by relativistic particles in a crystal and possibilities for utilization of this effect in physics" Sov. Phys. Usp.22 193–194 (1979)