1. F. E. Close, “Introduction to Quarks and Partons” Academic Press, London (1979). This also contains a detailed bibliography and list of references.
2. C. H. Llewellyn Smith, these proceedings.
3. M. Harvey, these proceedings.
4. O. W. Greenberg, Phys. Rev. Lett. 13:598 (1964).
5. H. J. Lipkin, these proceedings.