1. DAMOTH, D. C., Paper presented at 8th Annual ASTM Committee E-14 Conference on Mass Spectrometry, Atlantic City, New Jersey, June 1960.
2. MEYER, R. T., Paper presented at 15th Annual Conference on Mass Spectrometry and Allied Topics, Denver, Colorado, May 1967; also this book, page 36.
3. LINCOLN, K. A., and WERNER, D., Ibid.
4. U. S. Naval Radiological Reference Laboratory Report No, USNRDL-TR-68-36.