%0 Journal Article
%A Davis, W. R.
%A Oliver, D. R.
%T Matter field space times admitting symmetry mappings satisfying vanishing contraction of the Lie deformation of the Ricci tensor
%J Annales de l'institut Henri Poincaré. Section A, Physique Théorique
%D 1978
%P 197-206
%V 28
%N 2
%I Gauthier-Villars
%U http://archive.numdam.org/item/AIHPA_1978__28_2_197_0/
%G en
%F AIHPA_1978__28_2_197_0