%0 Journal Article %A Puppe, V. %T Group Actions and Codes %J Canadian journal of mathematics %D 2001 %P 212-224 %V 53 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-2001-009-0/ %R 10.4153/CJM-2001-009-0 %F 10_4153_CJM_2001_009_0