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@article{AM2_1989__38_1_137322, author = {John S. Lew}, title = {A functional equation of {Ih-Ching} {Hsu.}}, journal = {Aequationes mathematicae}, pages = {146--154}, publisher = {mathdoc}, volume = {38}, number = {1}, year = {1989}, zbl = {0687.39007}, url = {http://geodesic.mathdoc.fr/item/AM2_1989__38_1_137322/} }
John S. Lew. A functional equation of Ih-Ching Hsu.. Aequationes mathematicae, Tome 38 (1989) no. 1, pp. 146-154. http://geodesic.mathdoc.fr/item/AM2_1989__38_1_137322/