%0 Journal Article %A Ružický, Eugen %T The incidence submanifold of $RP^n\times G_1(RP^n)$ for $n$ odd is nonorientable %J Mathematica slovaca %D 1976 %P 101-102 %V 26 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MASLO_1976__26_2_a3/ %G en %F MASLO_1976__26_2_a3