1. The closed trapped region and the apparent horizon of two Schwarzschild black holes

   • N. T. Bishop

   Research Articles Pages: 717 - 723

2. A new demonstration of Bonnor's equation

   • Jacques Randon

   Research Articles Pages: 725 - 728

3. Gauge theory of gravitation: (4+N)-dimensional theory

   • Takeshi Fukuyama

   Research Articles Pages: 729 - 742

4. Decomposition of the space of covariant two-tensors on R³

   • Alice Chaljub-Simon

   Research Articles Pages: 743 - 749

5. Fluctuations produced by the cosmological constant in the empty Bianchi type-IX model

   • H. Sirousse-Zia

   Research Articles Pages: 751 - 768

6. A scalar field theory with a variable cosmological term

   • Makoto Endo
   • Takao Fukui

   Research Articles Pages: 769 - 772

7. Supersymmetric Dirac particles in Riemann-Cartan space-time

   • Helmut Rumpf

   Research Articles Pages: 773 - 792

8. Parametrized post-post-Newtonian (PP²N) formalism for the solar system

   • A. F. Sarmiento

   Research Articles Pages: 793 - 805