TY - JOUR AU - García-Río, Eduardo AU - Vázquez-Abal, M. Elena TI - Geodesic reflections in semi-Riemannian geometry JO - Czechoslovak Mathematical Journal PY - 1993 SP - 583 EP - 597 VL - 43 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1993.128439/ DO - 10.21136/CMJ.1993.128439 LA - en ID - 10_21136_CMJ_1993_128439 ER -