Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{CMH_1950__24_139001, author = {Lars L. Ahlfors}, title = {Open {Riemann} {Surfaces} and {Extremal} {Problems} on {Compact} {Subregions.}}, journal = {Commentarii mathematici Helvetici}, pages = {100--134}, publisher = {mathdoc}, volume = {24}, year = {1950}, zbl = {0041.41102}, url = {http://geodesic.mathdoc.fr/item/CMH_1950__24_139001/} }
Lars L. Ahlfors. Open Riemann Surfaces and Extremal Problems on Compact Subregions.. Commentarii mathematici Helvetici, Tome 24 (1950), pp. 100-134. http://geodesic.mathdoc.fr/item/CMH_1950__24_139001/