%0 Journal Article %A Okun, Boris %T Nonzero degree tangential maps between dual symmetric spaces %J Algebraic and Geometric Topology %D 2001 %P 709-718 %V 1 %N 2 %U http://geodesic.mathdoc.fr/articles/10.2140/agt.2001.1.709/ %R 10.2140/agt.2001.1.709 %F 10_2140_agt_2001_1_709