On the formulation of electrodynamics from a single principle A. O. Barut OriginalPaper Pages: 477 - 485
The massive bosonic string in the center-of-mass gauge Philippe Droz-Vincent OriginalPaper Pages: 525 - 541
Evaluating the validity of parametrized relativistic wave equations John R. Fanchi OriginalPaper Pages: 543 - 562
Selection rules for dipole radiation from a relativistic bound state M. C. LandR. I. ArshanskyL. P. Horwitz OriginalPaper Pages: 563 - 578