%0 Journal Article %A M. V. Velichko %T The Jordan block structure of images of long root elements in modular representations of algebraic groups of types $B_n$ and~$F_4$ %J Trudy Instituta matematiki %D 2011 %P 7-11 %V 19 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TIMB_2011_19_2_a1/ %G ru %F TIMB_2011_19_2_a1