TY - JOUR AU - Okun, Boris TI - Exotic smooth structures on nonpositively curved symmetric spaces JO - Algebraic and Geometric Topology PY - 2002 SP - 381 EP - 389 VL - 2 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.2140/agt.2002.2.381/ DO - 10.2140/agt.2002.2.381 ID - 10_2140_agt_2002_2_381 ER -