Lyubashyts, Valentin Ya., Nikolay V. Razuvaev, Veronika B. Romanenko, Sergey S. Shestopal, and L. V. Gurak. “State Evolution Mechanism: System Approach”. Amazonia Investiga 7, no. 14 (June 29, 2018): 340–349. Accessed September 15, 2025. https://amazoniainvestiga.info/index.php/amazonia/article/view/527.