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@article{SF_1992__45_3_135169, author = {D. Long}, title = {On the structure of some group codes.}, journal = {Semigroup forum}, pages = {38--44}, publisher = {mathdoc}, volume = {45}, number = {3}, year = {1992}, zbl = {0763.94005}, url = {http://geodesic.mathdoc.fr/item/SF_1992__45_3_135169/} }
D. Long. On the structure of some group codes.. Semigroup forum, Tome 45 (1992) no. 3, pp. 38-44. http://geodesic.mathdoc.fr/item/SF_1992__45_3_135169/