00970nam a2200277 i 450099100118029970753620020507184730.0990419s1997 sz ||| | eng 3764357363b10811904-39ule_instLE01308287ExLDip.to Matematicaeng516.373AMS 53C21Jost, Jürgen54734Nonpositive curvature :geometric and analytic aspects /Jürgen JostBasel ; Boston ; Berlin :Birkhauser,c1997viii, 108 p. :ill. ;24 cmLectures in mathematics ETH ZurichCurvature.b1081190423-02-1728-06-02991001180299707536LE013 53C JOS11 (1997)12013000112503le013-E0.00-l- 00000.i1091748228-06-02Nonpositive curvature924859UNISALENTOle01301-01-99ma -engsz 01