@article{01748369,
title = {Exotic smooth structures on nonpositively curved symmetric spaces.},
journal = {Geometry \& Topology},
volume = {6},
year = {2002},
pages = {381-389},
doi = {10.2140/agt.2002.2.381},
zbl = {0998.53033},
language = {en},
url = {http://dml.mathdoc.fr/item/01748369}
}
Okun, Boris. Exotic smooth structures on nonpositively curved symmetric spaces.. Geometry & Topology, Tome 6 (2002) pp. 381-389. doi : 10.2140/agt.2002.2.381. http://gdmltest.u-ga.fr/item/01748369/