Самойлов, Николай Анатольевич. “Approaches to the Study of Russian and Chinese Geocultural Spaces and Their Interaction in the 18 — Beginning of the 20th Cent”. Vestnik of Saint Petersburg University. Asian and African Studies, no. 3, Sept. 2009, pp. 61-75, https://aasjournal.spbu.ru/article/view/1636.