Vladimir V. Kisil, Geometry of Möbius transformations. Elliptic, parabolic and hyperbolic actions of SL(2,R), Londres, Imperial College Press, , xiv+192 (ISBN978-1-84816-858-9, DOI10.1142/p835, MR2977041)
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Vladimir V. Kisil, Geometry of Möbius transformations. Elliptic, parabolic and hyperbolic actions of SL(2,R), Londres, Imperial College Press, , xiv+192 (ISBN978-1-84816-858-9, DOI10.1142/p835, MR2977041)