00924nam0-22002771i-450-99000053154040332120100115103716.0000053154FED01000053154(Aleph)000053154FED0100005315420020821d1914----km-y0itay50------baengrusy-------001yyGeometrical researches on the theory of parallelsNicholas Lobachevskitranslated from the original by George Bruce HalstedChicagoOpen Court pub.191450 p24 cmLobachevskii,Nikolai Ivanovich<1792-1856>matematico russo42183Halsted,George Bruce<1853-1922>ITUNINARICAUNIMARCBK99000053154040332105 PH 7 14822aDININDININGeometrical researches on the theory of parallels328476UNINA