Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{AM2_1978__18_136785, author = {Stefan Czerwik}, title = {Solutions of a system of functional equations in some class functions.}, journal = {Aequationes mathematicae}, pages = {289--295}, publisher = {mathdoc}, volume = {18}, year = {1978}, zbl = {0406.39009}, url = {http://geodesic.mathdoc.fr/item/AM2_1978__18_136785/} }
Stefan Czerwik. Solutions of a system of functional equations in some class functions.. Aequationes mathematicae, Tome 18 (1978), pp. 289-295. http://geodesic.mathdoc.fr/item/AM2_1978__18_136785/