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3. Barouch, E. and Kaufman, G. M., 1977, Estimation of undiscovered oil and gas: Proceed. Symp. Appl. Math., v. 21, p. 77?91.
4. Bloomfield, P., Deffeyes, K. S., Watson, G. S., Benjamini, Y., and Stine, R. A., 1979, Volume and area of oil fields and their impact on order of discovery: Resource Estimation and Validation Project, Departments of Statistics and Geology, Princeton University.
5. Energy Resource Conservation Board, 1982, Alberta's reserves of crude oil, gas, natural gas liquids, and sulphur: Energy Resources Conservation Board, Alberta, Canada, Table 2-5.