On the geometric structure of nonstationary multisoliton vacuum metrics with real pole trajectories on a general background Mario C. DíazReinaldo J. Gleiser Research Articles Pages: 517 - 526
General and unified solution for perfect fluid homogeneous and isotropie cosmological models M. J. D. AssadJ. A. Sales de Lima Research Articles Pages: 527 - 538
Cosmological models in a Kaluza-Klein theory with variable rest mass J. Ponce de Leon Research Articles Pages: 539 - 550
On potentials for several classes of spinor and tensor fields in curved spacetimes Reinhard Illge Research Articles Pages: 551 - 564
A singularity-free cosmological model in ECSK theory R. JhaE. A. LordK. P. Sinha Research Articles Pages: 565 - 571
The quantum cosmology in the Brans-Dicke theory Liao LiuChao -Guang Huang Research Articles Pages: 583 - 587
Landau-Lifshitz fluctuations in heterotic superstring evaporation Diego Pavón Research Articles Pages: 595 - 601
An exact solution of Einstein's equations for two particles falling freely in an external gravitational field W. B. Bonnor Research Articles Pages: 607 - 622