1. Zur physikalischen Interpretation manifest kovarianter Darstellungen der inhomogenen Lorentzgruppe zur Masse Null

   • Werner Langbein

   OriginalPaper Pages: 73 - 87

2. Local fields with the wrong connection between spin and statistics

   • R. F. Streater

   OriginalPaper Pages: 88 - 96

3. Space-time and degrees of freedom of the elementary particle

   • H. Bacry

   OriginalPaper Pages: 97 - 105

4. The center-of-mass in Einsteins theory of gravitation

   • W. Beiglböck

   OriginalPaper Pages: 106 - 130

5. Analytic continuation of group representations. IV

   • Robert Hermann

   OriginalPaper Pages: 131 - 156