%0 Journal Article
%A W. Ziller
%A H. Gluck
%A F. Morgan
%T Calibrated geometries in Grassmann manifolds.
%J Commentarii mathematici Helvetici
%D 1989
%P 256-268
%V 64
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMH_1989__64_1_140153/
%F CMH_1989__64_1_140153