%0 Journal Article %A Yu. I. Manin %T Two-dimensional formal Abelian groups %J Doklady Akademii Nauk %D 1962 %P 35-37 %V 143 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1962_143_1_a8/ %G ru %F DAN_1962_143_1_a8