1. Baecher, G.B.: 1979, “Search in geotechnical exploration,” Proceedings, Third International Conference on Statistics and Probability in Soil and Structural Engineering, Sydney.
2. Baecher, G.B.: 1981, “Optimal estimators for soil properties,” ASCE, Journal of the Geotechnical Engineering Division, 107 (GT5), pp. 649–653.
3. Einstein, H.H. and Baecher, G.B.: 1983, “Probabilistic and statistical methods in engineering geology, Part I: Exploration,” Rock Mechanics and Rock Engineering, 16, pp 39–72.
4. Kendall, M.G.H. and Moran, P.A.P.: 1963, Geometric Probability, Griffins’s Monographs, London.
5. Ladd, C.C. and Foott, R.: 1974, “New design procedure for stability of soft clays”, ASCE, Journal of the Geotechnical Engineering Division, 100(GT7), pp. 763–786.