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@article{MZ_1980__171_172930, author = {Wolfgang Willems}, title = {On the {Projectives} of a {Group} {Algebras.}}, journal = {Mathematische Zeitschrift}, pages = {163--174}, publisher = {mathdoc}, volume = {171}, year = {1980}, zbl = {0435.20005}, url = {http://geodesic.mathdoc.fr/item/MZ_1980__171_172930/} }
Wolfgang Willems. On the Projectives of a Group Algebras.. Mathematische Zeitschrift, Tome 171 (1980), pp. 163-174. http://geodesic.mathdoc.fr/item/MZ_1980__171_172930/