TY - JOUR AU - Szybiak, Andrzej TI - Center-projective connections JO - Czechoslovak Mathematical Journal PY - 1971 SP - 99 EP - 108 VL - 21 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1971.101005/ DO - 10.21136/CMJ.1971.101005 LA - en ID - 10_21136_CMJ_1971_101005 ER -