A spectrum-generating algebra for particles of spin 1/2 P. CorderoS. Salamó OriginalPaper Pages: 265 - 269
A rational interpretation of the dirac equation for the electron Toyoki Koga OriginalPaper Pages: 271 - 278
Evaluation of the density matrix for an ensemble of anharmonic oscillators by a path integral approach P. M. MathewsM. S. Seshadri OriginalPaper Pages: 279 - 288
Dirac- and lorentz-invariant symmetries in mass and four-momentum for superluminal aspects B. B. P. Sinha Erratum Pages: 289 - 289
