Compare:
Hans Slomp (2011). Europe: A Political Profile. ISBN9780313391828. Erişim tarihi: 10 Eylül 2014. Russia occupies the eastern parts of the European subcontinent and the northern part of Asia.
un.org
Vishnevsky, Anatoly (15 Ağustos 2000). "Replacement Migration: Is it a solution for Russia?"(PDF). EXPERT GROUP MEETING ON POLICY RESPONSES TO POPULATION AGEING AND POPULATION DECLINE /UN/POP/PRA/2000/14. United Nations Population Division, Department of Economic and Social Affairs. ss. 6, 10. 29 Ağustos 2017 tarihinde kaynağından arşivlendi(PDF). Erişim tarihi: 8 Temmuz 2018.
web.archive.org
Vishnevsky, Anatoly (15 Ağustos 2000). "Replacement Migration: Is it a solution for Russia?"(PDF). EXPERT GROUP MEETING ON POLICY RESPONSES TO POPULATION AGEING AND POPULATION DECLINE /UN/POP/PRA/2000/14. United Nations Population Division, Department of Economic and Social Affairs. ss. 6, 10. 29 Ağustos 2017 tarihinde kaynağından arşivlendi(PDF). Erişim tarihi: 8 Temmuz 2018.