00756nam0-22002771i-450-990001258010403321000125801FED01000125801(Aleph)000125801FED0100012580120000920d1981----km-y0itay50------baeng<<The >>non euclidean hyperbolic planeby Kel ly and MattewsNew York [etc.]Springer-Verlag1981UniversitextKelly,Paul376154Kelly,PaulMattews,G.ITUNINARICAUNIMARCBK990001258010403321C-6-(64734MA1MA1Non euclidean hyperbolic plane381056UNINAING01