1. Agterberg F.P.(1978) Estimate of mean size of objects by measurement in sections. In the book: Investigations in Math. Geology. Ed. M.A. Romanova, Leningrad, Nauka, p. 90–98 (in Russian).
2. Barra Zh.R.(1974) Fundamental concepts of mathematical statistics. Moscow, Mir, 275p. (in Russian).
3. Basharin G.P.(1959) On the statistical estimation of entropy. Theory of probability and its applications. Vol. 4, vyp.3, p. 361–364.
4. Chayes F.(1950) On the bias of grain-size measurement made in thin section. J. Geol., v. 58, p. 156–160 and v.59, p.274-275.
5. Cochran W.G.(1961) Sampling Techniques. New York. J. Wiley, 330p.