Expanding algebraically degenerate vacuum spaces with homothetic motions A. W. -C. LunC. B. G. McIntoshD. B. Singleton Research Articles Pages: 745 - 753
Curvature and conformal collineations in presence of matter R. A. Tello-Llanos Research Articles Pages: 765 - 774
Single kerr-schild metrics: A double view C. B. G. McIntoshM. S. Hickman Research Articles Pages: 793 - 811
Homogeneous and hypersurface-homogeneous shear-free perfect fluids in general relativity C. B. Collins Research Articles Pages: 847 - 855