%0 Journal Article %A Trew, S. %A Zvengrowski, P. %T Non-Parallelizability of Grassmann Manifolds %J Canadian mathematical bulletin %D 1984 %P 127-128 %V 27 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1984-019-x/ %R 10.4153/CMB-1984-019-x %F 10_4153_CMB_1984_019_x