Troitskaya, Anna. “Marking a Place: The Role of Void Spaces in the Mental Boundaries of a City (on the Example of the Smolenka River Mouth)”. Journal of Frontier Studies 5, no. 4 (December 14, 2020): 344-381. Accessed April 29, 2024. https://www.jfs.today/index.php/jfs/article/view/243.