%0 Journal Article %A Szybiak, Andrzej %T Center-projective connections %J Czechoslovak Mathematical Journal %D 1971 %P 99-108 %V 21 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1971.101005/ %R 10.21136/CMJ.1971.101005 %G en %F 10_21136_CMJ_1971_101005