1. Ya. D. Sergeyev, Arithmetic of Infinity (Edizioni Orizzonti Meridionali, Cosenza, 2003).
2. Ya. D. Sergeyev, “A Few Remarks on Philosophical Foundations of a New Applied Approach to Infinity,” Scheria 26–27, 63–72 (2005).
3. Ya. D. Sergeyev, “Misuriamo l’infinito: Un semplice modo per insegnare i concetti delle grandezze infinite,” Periodico di Matematiche 6(2), 11–26 (2006).
4. Ya. D. Sergeyev, “Blinking Fractals and Their Quantitative Analysis Using Infinite and Infinitesimal Numbers,” Chaos, Solitons & Fractals 33(1), 50–75 (2007).
5. Ya. D. Sergeyev, “Computer System for Storing Infinite, Infinitesimal, and Finite Quantities and Executing Arithmetical Operations with Them,” European Patent EP No. 1728149B1 (3 June 2009).