Potapova Н. А. “«In Overwhelming Majority They Are Agent of the Japanese Inteligence Service . »: «Harbinian» Order of the NKVD of the USSR № 00593 and the Confidential Letter to It”. Bulletin of L.N. Gumilyov Eurasian National University. Historical Sciences. Philosophy. Religious Studies, vol. 139, no. 2, June 2022, pp. 107-30, doi:10.32523/2616-7255-2022-139-2-107-130.