Selga, Marika. “U.S. Legation in Riga As a Gateway: Reflections in Frederick W. B. Coleman’s 1923 Diary”. Journal of the University of Latvia. History | Latvijas Universitātes Žurnāls. Vēsture, no. 13/14 (February 22, 2023): 79–100. Accessed July 3, 2024. https://journal.lu.lv/luzv/article/view/453.