1. J. Piaget und B. Inhelder, Die Psychologie der frühen Kindheit. Die geistige Entwicklung von der Geburt bis zum 7 Lebensjahr, in Handbuch der Psychologie (Basel-Stuttgart, 1960), pp. 275–314.
2. Yu. S. Stepanov, Constants: Dictionary Of Russian Culture, 3rd ed. (Akademicheskii Proekt, Moscow, 2004) [in Russian].
3. V. P. Maslov, “Mixture of new ideal gases and the solution of problems in Gibbs and Einstein paradoxes,” Russian J. Math. Phys. 18(1), 83–101 (2011).
4. V. P. Maslov, “Solution of the Gibbs paradox using the notion of entropy as a function of fractial dimension,” Russian J. Math. Phys. 17(3), 251–261 (2010).
5. V. P. Maslov, “Mathematical solution of the Gibbs paradox,” Mat. Zametki 89(2), 272–284 (2011) [Math. Notes 89 (2), 266–276 (2011)].