%0 Journal Article
%A Block, Richard E.
%T On the Extensions of Lie Algebras
%J Canadian journal of mathematics
%D 1968
%P 1439-1450
%V 20
%N 1
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1968-145-5/
%R 10.4153/CJM-1968-145-5
%F 10_4153_CJM_1968_145_5