%0 Journal Article %A Kolář, Ivan %T Complex velocities on real manifolds %J Czechoslovak Mathematical Journal %D 1971 %P 118-123 %V 21 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1971.101007/ %R 10.21136/CMJ.1971.101007 %G en %F 10_21136_CMJ_1971_101007