%0 Journal Article %A Yu. G. Zarhin %T Isogenies of Abelian varieties over fields of finite characteristic %J Sbornik. Mathematics %D 1974 %P 451-461 %V 24 %N 3 %U http://geodesic.mathdoc.fr/item/SM_1974_24_3_a6/ %G en %F SM_1974_24_3_a6