1. Inertial reference frames in Einstein's theory of gravitation

   • J. Audretsch

   OriginalPaper Pages: 1 - 9

2. An electric charge system moving radially with the velocity of light

   • L. L. G. Chambers

   OriginalPaper Pages: 11 - 17

3. Classical spin variables and classical counterpart of the Dirac-Feynman-Gell-Mann equation

   • S. Depaquit
   • PH. Guéret
   • J. P. Vigier

   OriginalPaper Pages: 19 - 32

4. Energy-momentum-stress tensor and gravitational field of uniformly rotating masses

   • Eckart Frehland

   OriginalPaper Pages: 33 - 40

5. A new interpretation of Vaidya radiation

   • P. A. Goodinson
   • R. A. Newing

   OriginalPaper Pages: 41 - 44

6. Conservation ofe/m in general relativity

   • Arthur Komar

   OriginalPaper Pages: 45 - 47

7. Particle-like objects in a nonlinear field theory

   • M. Muraskin

   OriginalPaper Pages: 49 - 53

8. Power series of the free field as operator-valued functional on spaces of typeS

   • A. Rieckers

   OriginalPaper Pages: 55 - 82

9. Comments on Leiter's paper on non-linear wave mechanics

   • Mendel Sachs

   OriginalPaper Pages: 83 - 86