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@article{AM2_1996__52_1-2_137668, author = {Margherita Fochi}, title = {D'Alembert's functional equation on restricted domains.}, journal = {Aequationes mathematicae}, pages = {246--253}, publisher = {mathdoc}, volume = {52}, number = {1-2}, year = {1996}, zbl = {0861.39018}, url = {http://geodesic.mathdoc.fr/item/AM2_1996__52_1-2_137668/} }
Margherita Fochi. D'Alembert's functional equation on restricted domains.. Aequationes mathematicae, Tome 52 (1996) no. 1-2, pp. 246-253. http://geodesic.mathdoc.fr/item/AM2_1996__52_1-2_137668/