Some rotating, time-dependent Bianchi type-IX cosmologies with heat flow Egils Sviestins Research Articles Pages: 521 - 523
The motion of a classical spinning particle in a Riemann-Cartan space-time Ricardo Amorim Research Articles Pages: 525 - 533
The gravitational contribution to the momentum of a medium in general relativity Thomas W. Noonan Research Articles Pages: 535 - 544
The time-symmetric initial value problem for a homogeneous, anisotropic, empty, closed universe, using Regge calculus Ruth M. Williams Research Articles Pages: 559 - 571
A constraint on physical quantum states in cosmological space-times A. H. NajmiA. C. Ottewill Research Articles Pages: 573 - 578
On the scalar-tetradic theories of gravitation: Cosmology and gravitational radiation D. Sáez Research Articles Pages: 579 - 593
Can Einstein's definition of simultaneity be considered a convention? R. De RitisS. Guccione Research Articles Pages: 595 - 598
Propagation of gravitational waves in Robertson-Walker backgrounds Allen I. Janis Research Articles Pages: 599 - 612