Zhang Tianlu. 中国少数民族人口问题研究. National Population and Family Planning Commission of China. 2004-03-26 [2007-01-16]. (原始内容存档于2006-11-17). See section "民族人口生活质量问题研究".
Table 1: Foreigners by type of residence, sex, and citizenship. Number of foreigners in the Czech Republic: Excluding Asylum Granted. Czech Statistical Office. 2009-04-30 [2009-05-31]. (原始内容存档于2011-06-09).; figure consists of all persons with citizenship of one of the Koreas, being 1,248 for "Korea" and 24 for "Korea, lidově demokratická republika"
Destination by Country, 1953-2007. Statistics on Overseas Koreans. South Korea: Overseas Korean Foundation. 2007 [2009-05-31].[永久失效連結]; note that the statistics are incomplete regarding Soviet-bloc adoptions of North Korean children, which are known to have occurred in Mongolia, Romania, and East Germany, though they do record the adoption of 7 South Korean children in Poland in 1970 (Communist Poland & South Korea had no diplomatic relations at the time). The source includes 47 Koreans adopted by "Buland" in 1970; no such country exists.
Zhang Tianlu. 中国少数民族人口问题研究. National Population and Family Planning Commission of China. 2004-03-26 [2007-01-16]. (原始内容存档于2006-11-17). See section "民族人口生活质量问题研究".
Table 1: Foreigners by type of residence, sex, and citizenship. Number of foreigners in the Czech Republic: Excluding Asylum Granted. Czech Statistical Office. 2009-04-30 [2009-05-31]. (原始内容存档于2011-06-09).; figure consists of all persons with citizenship of one of the Koreas, being 1,248 for "Korea" and 24 for "Korea, lidově demokratická republika"