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@article{AM2_1984__27_137026, author = {J. Dhombres}, title = {Autour de f(x)f(y) - f(xy).}, journal = {Aequationes mathematicae}, pages = {231--235}, publisher = {mathdoc}, volume = {27}, year = {1984}, zbl = {0543.39002}, url = {http://geodesic.mathdoc.fr/item/AM2_1984__27_137026/} }
J. Dhombres. Autour de f(x)f(y) - f(xy).. Aequationes mathematicae, Tome 27 (1984), pp. 231-235. http://geodesic.mathdoc.fr/item/AM2_1984__27_137026/