Dubrouka, Alena M. “The Riga Border in the Assessments of the British Government Circles in the First Half of the 1920s”. Journal of the Belarusian State University. History, no. 2 (May 3, 2021): 29–38. Accessed July 18, 2026. https://journals.bsu.by/index.php/history/article/view/3680.