%0 Journal Article %A S. S. Ibraev %T On the second cohomology groups of exceptional Lie algebras in positive characteristic %J Eurasian mathematical journal %D 2011 %P 104-111 %V 2 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/EMJ_2011_2_1_a4/ %G en %F EMJ_2011_2_1_a4