TY  - JOUR
AU  - W. Ziller
AU  - H. Gluck
AU  - F. Morgan
TI  - Calibrated geometries in Grassmann manifolds.
JO  - Commentarii mathematici Helvetici
PY  - 1989
SP  - 256
EP  - 268
VL  - 64
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMH_1989__64_1_140153/
ID  - CMH_1989__64_1_140153
ER  -