a . “Taken together, these results strongly suggest that there has been little or no differential Pb loss which can be attributed to the higher temperatures existing at greater depths.” Robert V. Gentry et al., “Differential Lead Retention in Zircons: Implications for Nuclear Waste Containment,” Science, 16 April 1982, p. 296.
u Robert V. Gentry, “Letters,” Physics Today, October 1982, pp. 13–14.
b . Robert V. Gentry, “Letters,” Physics Today, April 1983, p. 13.
c . “In fact, considering the Precambrian age of the granite cores, our results show an almost phenomenal amount of He has been retained at higher temperatures, and the reason for this certainly needs further investigation ...” Robert V. Gentry et al., “Differential Helium Retention in Zircons,” Geophysical Research Letters, Vol. 9, October 1982, p. 1130.
u Robert V. Gentry, Personal communication, 24 February 1984.
u D. Russell Humphreys et al., “Helium Diffusion Rates Support Accelerated Nuclear Decay,” Proceedings of the Fifth International Conference on Creationism (Pittsburgh, Pennsylvania: Creation Science Fellowship, Inc., 2003), pp. 175–195.