Gravitons and photons: The methodological unification of source theory Julian Schwinger Research Articles Pages: 251 - 256
Gravitational potentials: A constructive approach to general relativity Niall ó MurchadhaJames W. York Jr. Research Articles Pages: 257 - 261
Stationary vacuum fields with cylindrical symmetry M. M. SomA. F. F. TeixeiraIdel Wolk Research Articles Pages: 263 - 267
The use of algebraic computing in general relativity H. I. CohenÖ. LeringeY. Sundblad Research Articles Pages: 269 - 286
The rate of growth of the magnetic energy density during a gravitational collapse D. P. Mason Research Articles Pages: 287 - 291
The holonomy group in general relativity and the determination ofg ij fromT i j Edwin Ihrig Research Articles Pages: 313 - 323