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@article{PIM_1997_N_S_62_76_a6, author = {C.-S. Lin and Y.J. Cho}, title = {Additive f-bimorphisms and {Cosine} {Type} {Equations}}, journal = {Publications de l'Institut Math\'ematique}, pages = {63 }, publisher = {mathdoc}, volume = {_N_S_62}, number = {76}, year = {1997}, zbl = {0994.39019}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PIM_1997_N_S_62_76_a6/} }
C.-S. Lin; Y.J. Cho. Additive f-bimorphisms and Cosine Type Equations. Publications de l'Institut Mathématique, _N_S_62 (1997) no. 76, p. 63 . http://geodesic.mathdoc.fr/item/PIM_1997_N_S_62_76_a6/