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@article{AM2_1981__23_136920, author = {Carl C. Cowen}, title = {Analytic solutions of {B\"ottcher's} functional equation in the unit disk. {(Short} {Communication).}}, journal = {Aequationes mathematicae}, pages = {317--318}, publisher = {mathdoc}, volume = {23}, year = {1981}, url = {http://geodesic.mathdoc.fr/item/AM2_1981__23_136920/} }
Carl C. Cowen. Analytic solutions of Böttcher's functional equation in the unit disk. (Short Communication).. Aequationes mathematicae, Tome 23 (1981), pp. 317-318. http://geodesic.mathdoc.fr/item/AM2_1981__23_136920/