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@article{MS2_1966__19_165967, author = {Olav Njastad}, title = {Infinite-Valued {Asymptotic} {Points} and {Koebe} {Arcs.}}, journal = {Mathematica Scandinavica}, pages = {172--182}, publisher = {mathdoc}, volume = {19}, year = {1966}, zbl = {0184.30402}, url = {http://geodesic.mathdoc.fr/item/MS2_1966__19_165967/} }
Olav Njastad. Infinite-Valued Asymptotic Points and Koebe Arcs.. Mathematica Scandinavica, Tome 19 (1966), pp. 172-182. http://geodesic.mathdoc.fr/item/MS2_1966__19_165967/