Sensitivity of the heterodyne gravitational wave detector Bruno Bertotti Research Articles Pages: 847 - 855
The two-body problem in Rosen's bimetric theory of gravitation Mark Israelit Research Articles Pages: 857 - 868
Some aspects of the geometry of first-quantized theories R. J. Petti Research Articles Pages: 869 - 883
A new “Projective relativity” based on the De Sitter universe Giuseppe Arcidiacono Research Articles Pages: 885 - 889
Some cosmological models in the bimetric theory of gravitation Itzhak GoldmanNathan Rosen Research Articles Pages: 895 - 901
Two examples of massive scattering using twistor Hamiltonians K. P. TodZ. Perjés Research Articles Pages: 903 - 913