1. Symmetry group containing Lorentz invariance and unitary spin
2. Mass relations and the “super-lorentz group” L
3. H. Bacry and J. Nuyts, CERN preprint 10068/Th. 506.
4. W. Rühl, CERN preprint 10058/Th.505, Nuovo Cimento, to be published.
5. W. Rühl, CERN preprint 65/70/5/Th.514, Nuovo Cimento, to be published.