%0 Journal Article %A A. N. Kirillov %T Convex polytopes and formal groups %J Zapiski Nauchnykh Seminarov POMI %D 1978 %P 87-90 %V 75 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1978_75_a9/ %G ru %F ZNSL_1978_75_a9