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@article{ZR_1976_1_9_a10, author = {J\'anos Rim\'an}, title = {On an {Extension} of {Pexider's} {Equation}}, journal = {Zbornik radova}, pages = {65 }, publisher = {mathdoc}, volume = {1}, number = {9}, year = {1976}, language = {en}, url = {http://geodesic.mathdoc.fr/item/ZR_1976_1_9_a10/} }
János Rimán. On an Extension of Pexider's Equation. Zbornik radova, Tome 1 (1976) no. 9, p. 65 . http://geodesic.mathdoc.fr/item/ZR_1976_1_9_a10/