[1] L. Baladová: Minimum of average conditional entropy for given minimum probability of error. Kybernetika 2 (1966), 5, 416-422. MR 0215641

[2] V. A. Kovalevskij: Pattern recognition problem from the viewpoint of mathematical statistics. In: Reading automata, Kiev 1965.

[3] M. Loéve: Probability Theory. D. Van Nostrand, New York 1960. MR 0123342

[4] A. Perez: Notions géneralisées d'incertitude, d'entropie et d'information du point de vue de la theorie de martingales. In Trans. of First Prague Conf. on Inf. Theory, Stat. Dec. Functions and Random Processes. Praha 1957. Zbl 0102.13204

[5] A. Perez: Information, $\varepsilon$-Sufficiency and Data Reduction Problems. Kybernetika 1 (1965), 4, 297-323. MR 0205410

[6] I. Vajda: Rate of convergence cf the information in a sample concerning a parameter. Czechosl. Mathem. Journal (in print).