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@article{CMH_1982__57_139921, author = {Steven R. Bell}, title = {Proper holomorphic mappings between circular domains.}, journal = {Commentarii mathematici Helvetici}, pages = {532--538}, publisher = {mathdoc}, volume = {57}, year = {1982}, zbl = {0511.32013}, url = {http://geodesic.mathdoc.fr/item/CMH_1982__57_139921/} }
Steven R. Bell. Proper holomorphic mappings between circular domains.. Commentarii mathematici Helvetici, Tome 57 (1982), pp. 532-538. http://geodesic.mathdoc.fr/item/CMH_1982__57_139921/