1. Waldron, Edward D., Paul, T. M., and Skoryna, S. C., Nature, 205, 1117 (1965).
2. Skoryna, S. C., Paul, T. M., and Waldron, Edward D., Canad. Med. Assoc. J., 91, 285 (1964).
3. Paul, T. M., Waldron, Edward D., and Skoryna, S. C., Canad. Med. Assoc. J., 91, 553 (1964).
4. Directory of Whole Body Counters, Intern. Atomic Energy Agency (1964).