%0 Journal Article %A Koichi Betsumiya %A Masaaki Harada %A Akihiro Munemasa %T A complete classification of doubly even self-dual codes of length 40 %J The electronic journal of combinatorics %D 2012 %V 19 %N 3 %U http://geodesic.mathdoc.fr/articles/10.37236/2593/ %R 10.37236/2593 %F 10_37236_2593