TY  - JOUR
AU  - M. Strake
AU  - R.J. Spatzier
TI  - Some examples of higher rank manifolds of nonnegative curvature.
JO  - Commentarii mathematici Helvetici
PY  - 1990
SP  - 299
EP  - 317
VL  - 65
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMH_1990__65_3_140197/
ID  - CMH_1990__65_3_140197
ER  -