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@article{PIM_1963_N_S_03_17_a7, author = {M. Hossz\'u}, title = {On {A} {Class} {Of} {Functional} {Equations}}, journal = {Publications de l'Institut Math\'ematique}, pages = {53 }, publisher = {mathdoc}, volume = {_N_S_03}, number = {17}, year = {1963}, url = {http://geodesic.mathdoc.fr/item/PIM_1963_N_S_03_17_a7/} }
M. Hosszú. On A Class Of Functional Equations. Publications de l'Institut Mathématique, _N_S_03 (1963) no. 17, p. 53 . http://geodesic.mathdoc.fr/item/PIM_1963_N_S_03_17_a7/