1. A unified view of particles and fields in a simple model of a physical system

   • M. García-Sucre

   OriginalPaper Pages: 163 - 188

2. Wave optics of the spherical gravitational lens. II. Diffraction of a plane electromagnetic wave by a black hole

   • E. Herlt
   • H. Stephani

   OriginalPaper Pages: 189 - 199

3. Magnetohydrodynamic kinks in astrophysics

   • David Finkelstein
   • Daniel Weil

   OriginalPaper Pages: 201 - 217

4. A mathematical model for a set of microsystems

   • H. Neumann

   OriginalPaper Pages: 219 - 226

5. On the nonequivalency of “right” and “left” in the electrodynamics of moving bodies

   • Karl Drago Stiegler

   Letter Pages: 227 - 233