%0 Journal Article %A Ü. G. Lumiste %T Projective connections in canonical bundles of manifolds of planes %J Sbornik. Mathematics %D 1973 %P 223-248 %V 20 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1973_20_2_a2/ %G en %F SM_1973_20_2_a2