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@article{PIM_1960_S_S_XIV_14_a6, author = {Svetozar Kurepa}, title = {The {Area} {Of} {Generalized} {Circle} {In} {The} {Hyperbolic} {Plane}}, journal = {Publications de l'Institut Math\'ematique}, pages = {99 }, publisher = {mathdoc}, volume = {_S_S_XIV}, number = {14}, year = {1960}, url = {http://geodesic.mathdoc.fr/item/PIM_1960_S_S_XIV_14_a6/} }
Svetozar Kurepa. The Area Of Generalized Circle In The Hyperbolic Plane. Publications de l'Institut Mathématique, _S_S_XIV (1960) no. 14, p. 99 . http://geodesic.mathdoc.fr/item/PIM_1960_S_S_XIV_14_a6/