HARRIS, C. D. Geographic research and teaching institutions in the Soviet Union: Notes on a trip to the USSR in May-June, 1957. ERDKUNDE, [S. l.], v. 12, n. 3, p. 214–221, 1958. DOI: 10.3112/erdkunde.1958.03.04. Disponível em: https://www.erdkunde.uni-bonn.de/article/view/1242. Acesso em: 30 apr. 2025.