1. Very High-Energy Collisions of Hadrons
2. Hypothesis of Limiting Fragmentation in High-Energy Collisions
3. N.F. Bali, L.S. Brown, R.D. Peccei and A. Pignotti, Phys. Rev. Letters, to be published.
4. 6th Intern. Seminar on Cosmic rays;Jones,1970
5. K. Erickson, Thesis, University of Michigan Report, April 1970, unpublished.