1. R. J. Glauber:Lectures Delivered at the Summer Institute for Theoretical Physics, University of Colorado (1958).
2. B. T. Feld andP. C. M. Yock: preprint, Laboratory for Nuclear Sciences, Massachusetts Institute of Technology.
3. See for instance:L. Van Hove:Lecture Notes, CERN 65-22.
4. A. Fridman, O. Benary, A. Michalon, B. Schiby, R. Strub andG. Zech:Phys. Rev.,145, 4, 1136 (1966).
5. R. Crittenden, H. Martin, W. Kernan, L. Piepuner, A. C. Li, F. Ayer, L. Marshall andM. L. Stevenson:Phys. Rev. Lett.,12, 429 (1964).