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@article{MS2_1990__66_1_167099, author = {J. Duncan and A.L.T. Paterson}, title = {Amenability for discrete convolution semigroup algebras.}, journal = {Mathematica Scandinavica}, pages = {141--146}, publisher = {mathdoc}, volume = {66}, number = {1}, year = {1990}, zbl = {0748.46027}, url = {http://geodesic.mathdoc.fr/item/MS2_1990__66_1_167099/} }
J. Duncan; A.L.T. Paterson. Amenability for discrete convolution semigroup algebras.. Mathematica Scandinavica, Tome 66 (1990) no. 1, pp. 141-146. http://geodesic.mathdoc.fr/item/MS2_1990__66_1_167099/