%0 Journal Article %A G. S. Suleimanova %T Conjugacy classes of large abelian subgroups in the unipotent subgroup of a~Chevalley group of type $F_4$ %J Vladikavkazskij matematičeskij žurnal %D 2011 %P 45-55 %V 13 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMJ_2011_13_2_a4/ %G ru %F VMJ_2011_13_2_a4