Paulson, S.E., and Kuhlman, H.L., 1989, Laboratory core leaching and petrologic studies to evaluate oxide copper ores for in situ mining, in In situ leach mining, Proceedings - Bureau of Mines Technology Transfer Seminars, Phoenix, AZ, April 4, and Salt Lake City, UT, April 6, 1989: U.S. Bureau of Mines Information Circular I.C. 9216, p. 18-36.