1. Nuclear Tracks in Solids;Fleischer,1975
2. B.A. Weaver, Actinides in the cosmic rays and their detection, Ph.D. Thesis, University of California, Berkeley, 2001
3. Performance of the Ultraheavy Collector of the Trek experiment
4. P.H. Pile, Private communication, 2000
5. Energy loss of relativistic heavy ions in matter