Lyubashits, V. Y., N. V. Razuvaev, A. Y. Mamychev, A. Y. Mordovtsev, and R. M. Magomedov. “State As Evolving Phenomenon: Key Problems and Approaches”. Amazonia Investiga, vol. 7, no. 15, Aug. 2018, pp. 32-41, https://amazoniainvestiga.info/index.php/amazonia/article/view/383.