%0 Journal Article %A V. I. Zubov %T The twisting problem for beams of charged particles %J Doklady Akademii Nauk %D 1994 %P 142-145 %V 335 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1994_335_2_a3/ %G ru %F DAN_1994_335_2_a3