1. Anderson, T. W., 1958, Introduction to multivariate statistical analysis: Wiley & Sons, New York.
2. Journel, A., 1984, The place of non-parametric geostatistics:in G. Verly (Ed.), Geostatistics for natural resource characterization, Proceedings NATO A.S.I.: Reidel Publishing Co., Dordrecht, p. 307?336.
3. Lantuéjoul, C., Lajaunie, C., and Rivoirard, J., 1986, Testing several change of support models used to estimate global reserves;in G. Matheron and M. Armstrong (Eds.), Geostatistical case-studies: Reidel Publishing Co, Dordrecht, in press.
4. Lukacs, F., 1977, Multivariate Analysis IV p. 119 publisher, etc.
5. Maréchal, A., 1984, Recovery estimation: a review of models and methods:in G. Verly (Ed.), Geostatistics for natural resources characterization, Proceedings NATO A.S.I.: Reidel Publishing Co, Dordrecht, p. 385?420.