Gravitation theory as theory of non-Lorentzian transformations of the systems of reference D. -E. LiebscherH. -J. Treder Research Articles Pages: 117 - 125
Spherically symmetric radiation of charge in Einstein-Maxwell theory W. B. BonnorP. C. Vaidya Research Articles Pages: 127 - 130
Conservation laws in general relativity based upon the existence of preferred collineations C. D. Collinson Research Articles Pages: 137 - 142