TY - JOUR AU - M. A. McKiernan AU - H. Richards TI - Characterization of some tensor concomitants of the metric tensor and vector fields under restricted groups of transformations JO - Annales Polonici Mathematici PY - 1970 SP - 139 EP - 149 VL - 23 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ap-23-2-139-149/ DO - 10.4064/ap-23-2-139-149 LA - en ID - 10_4064_ap_23_2_139_149 ER -