%0 Journal Article %A Švec, Alois %T On the second covariant derivative of a vector field %J Czechoslovak Mathematical Journal %D 1967 %P 77-78 %V 17 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1967.100761/ %R 10.21136/CMJ.1967.100761 %G en %F 10_21136_CMJ_1967_100761