1. Owens, G., Bender, M., and Blau, M., J. Neurosurg., 1967, vol. 27, pp. 466–470.
2. Rao, K.L.N., Varma, R.N., Saxena, S.K. and Mathew, C., Abstracts of Papers, 3rd Int. Conf. on Isotopes (3rd ICI), Isotope Production and Applications in the 21st Century, Vancouver (Canada), September, 1999, p. 170.
3. Falconi, N., Radioisotope Production and Quality Control, Vienna: IAEA, 1971, vol. 670.
4. The Current and Planned Low-Level Waste Disposed Capacity Report, Revision 1, USA: US Department of Energy, Office of Environmental Management, Waste Management Reports, September 18, 1998.
5. Jorder, M.E., Haut, R.C., and Kline, W.E., US Patent 4 780 266, 1988.