%0 Journal Article %A R. Vedel' %A M. A. Kumakhov %T Channeling of ions at small depths %J Doklady Akademii Nauk %D 1976 %P 68-70 %V 230 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1976_230_1_a15/ %G ru %F DAN_1976_230_1_a15