Baklanov, P. (2020) “Spatial Development of Russia and the USA in the 16-20th centuries as formation of the major unit of geopolitical constructs of modernity”, Revista San Gregorio, 1(37). Available at: https://revista.sangregorio.edu.ec/index.php/REVISTASANGREGORIO/article/view/1288 (Accessed: 23 February 2026).