00524nam a2200181Ia 4500082001800000100002000018245003700038260005200075300002000127490003500147500000500182690000600187700000500193952010000198964001700298921001000315999001700325 a516bSt857.SH aStillwell, John aSources of hyperbolic geometryb aProvidencebAmerican Mathematical Societyc1996 aix, 153p. Index aHistory of Mathematicsv v. 10 a a  a 00104070aISIbISId1998-09-22l0o516 St857.SHpDP23180r2019-02-14 00:00:00w2019-02-14yBK abcdefg a13130 c13130d13130