Katlishin, Oleg, and Alexander Baleevskikh. “Analysis of the Dynamics of Gross Domestic Product and External Economic Activity of the Russian Federation for 2013−2018”. Amazonia Investiga 9, no. 26 (February 21, 2020): 146-157. Accessed May 19, 2024. https://amazoniainvestiga.info/index.php/amazonia/article/view/1125.