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@article{AM2_1977__15_136654, author = {Thomas A. O'Connor}, title = {A solution of the {D'Alembert's} functional equation on a locally compact {Abelian} group.}, journal = {Aequationes mathematicae}, pages = {235--238}, publisher = {mathdoc}, volume = {15}, year = {1977}, url = {http://geodesic.mathdoc.fr/item/AM2_1977__15_136654/} }
Thomas A. O'Connor. A solution of the D'Alembert's functional equation on a locally compact Abelian group.. Aequationes mathematicae, Tome 15 (1977), pp. 235-238. http://geodesic.mathdoc.fr/item/AM2_1977__15_136654/