Matter field space times admitting symmetry mappings satisfying vanishing contraction of the Lie deformation of the Ricci tensor W. R. Davis; D. R. Oliver — 1978 Annales de l'I.H.P. Physique théorique
On the role of certain symmetry properties in relativistic kinetic theory and thermodynamics D. R. Oliver; W. R. Davis — 1979 Annales de l'I.H.P. Physique théorique
Infinitesimal holonomy group structure and geometrization L. K. Norris; W. R. Davis — 1979 Annales de l'I.H.P. Physique théorique