Bogdanov O. V. Semiclassical probability of radiation of twisted photons in the ultrarelativistic limit / O. V. Bogdanov, P. O. Kazinski, G. Yu. Lazarenko // Physical Review D. 2019. Vol. 99, № 11. P. 116016-1-116016-29. URL: http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000673997