TY - JOUR AU - Hall, G. S. TI - Some remarks on the physical structure of energy-momentum tensors in general relativity JO - Archivum mathematicum PY - 1982 SP - 169 EP - 176 VL - 18 IS - 4 UR - http://geodesic.mathdoc.fr/item/ARM_1982_18_4_a0/ LA - en ID - ARM_1982_18_4_a0 ER -