Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{AM2_1982__25_136977, author = {Detlef Gronau}, title = {Two iterative functional equations for power series. {(Short} {Communication).}}, journal = {Aequationes mathematicae}, pages = {318--319}, publisher = {mathdoc}, volume = {25}, year = {1982}, zbl = {0526.39009}, url = {http://geodesic.mathdoc.fr/item/AM2_1982__25_136977/} }
Detlef Gronau. Two iterative functional equations for power series. (Short Communication).. Aequationes mathematicae, Tome 25 (1982), pp. 318-319. http://geodesic.mathdoc.fr/item/AM2_1982__25_136977/