TY  - BOOK
AU  - Jost, Jurgen
TI  - Nonpositive curvature: : geometric and analytic aspects 
T2  - Lectures in Mathematics  ETH Zurich
SN  - 3764357363
U1  - 516 
PY  - 1997///
CY  - Basel
PB  - Birkhauser Verlag
ER  -