TY - JOUR AU - Kolář, Ivan TI - Complex velocities on real manifolds JO - Czechoslovak Mathematical Journal PY - 1971 SP - 118 EP - 123 VL - 21 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1971.101007/ DO - 10.21136/CMJ.1971.101007 LA - en ID - 10_21136_CMJ_1971_101007 ER -