%0 Journal Article %A N. P. Kalashnikov %A A. S. Olchak %T Self-acceleration of ultrarelativistic electron beam in a single crystal %J Doklady Akademii Nauk %D 1978 %P 1332-1335 %V 240 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1978_240_6_a15/ %G ru %F DAN_1978_240_6_a15