%0 Journal Article %A S. M. Skryabin %T Classification of Hamiltonian forms over divided power algebras %J Sbornik. Mathematics %D 1991 %P 121-141 %V 69 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1991_69_1_a7/ %G en %F SM_1991_69_1_a7