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@article{PIM_1972_N_S_13_27_a9, author = {\v{Z}. Mijajlovi\'c}, title = {On {The} {Functional} {Equation} f = fg}, journal = {Publications de l'Institut Math\'ematique}, pages = {59 }, publisher = {mathdoc}, volume = {_N_S_13}, number = {27}, year = {1972}, url = {http://geodesic.mathdoc.fr/item/PIM_1972_N_S_13_27_a9/} }
Ž. Mijajlović. On The Functional Equation f = fg. Publications de l'Institut Mathématique, _N_S_13 (1972) no. 27, p. 59 . http://geodesic.mathdoc.fr/item/PIM_1972_N_S_13_27_a9/