%0 Journal Article
%A Shigeyuki Morita
%T The extension of Johnson's homomorphism form the Torelli group to the mapping class group.
%J Inventiones mathematicae
%D 1993
%P 197-224
%V 111
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM_1993__111_1_144076/
%F IM_1993__111_1_144076