1. V. P. Maslov, “Mathematical Aspects of the Heap Paradox and the Hidden Parameter,” Math. Notes 103 (4), 678–681 (2018).
2. V. P. Maslov, “Passing from Mesoscopy to Macroscopy. The Mesoscopic Parameter k,” Russ. J. Math. Phys. 25 (1), 58–65 (2018).
3. Yu. L. Ershov, Numbering Theory [in Russian] (Nauka, Moscow, 1977), pp. 416).
4. Yu. L. Ershov, Problems of Decidability and Constructive Models (Nauka, Moscow, 1980), pp. 415. [in Russian].
5. S. S. Goncharov and Yu. L. Ershov, Constructive Models (Consultant Bureau, New York, 2000), pp. 293.