%0 Journal Article %A W. Roter %T Some remarks on infinitesimal projective transformations in recurrent and Ricci-recurrent spaces %J Colloquium Mathematicum %D 1966 %P 121-127 %V 15 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-15-1-121-127/ %R 10.4064/cm-15-1-121-127 %G en %F 10_4064_cm_15_1_121_127