@article{AM2_1985__28_137061,
     author = {Istv\'an Feny\"o},
     title = {On the general solution of a system of functional equations.},
     journal = {Aequationes mathematicae},
     pages = {233--235},
     publisher = {mathdoc},
     volume = {28},
     year = {1985},
     zbl = {0576.39009},
     url = {http://geodesic.mathdoc.fr/item/AM2_1985__28_137061/}
}