Касьянов, В. О., Ю. Т. Гуз, and І. В. Прохоренко. 2009. “The Use of Entropiynogo Principle of Optimality Is in the Estimation of Theory of Educational Process”. Problems of Informatization and Control 2 (26):63-67. https://doi.org/10.18372/2073-4751.2.6981.