1. Vallée, M., and S. McCutcheon, 1997, Are international reporting standards feasible? Can. Inst. Min. Metall. Bull., v. 90, no. 1007, pp. 30–37
2. Vallée, M., J. M. Belisle, and M. David, 1982, Kriging as a tool to avoid overestimation of grade in sulphide orebodies; Tran. Inst. Min. Metall., v. 91, Sect. A, pp. 1–3
3. Vallée, M., and A. J. Sinclair, 1997, Efficient resource and reserve estimation depends on high quality geology and evaluation procedures; Can. Inst. Min. Metall. Bull., v. 90, no. 1012, pp. 76–79
4. Yalcin, E., and A. Unal, 1992, The effect of the variogram estimation on pit-limit design; Can. Inst. Min. Metall. Bull., v. 85, no. 961, pp. 47–50
5. Wignall, T. K., and J. de Geoffroy, 1987, Statistical models for optimizing mineral exploration; Plenum Press, New York, 432 pp