1. Official website of the United Nations Human Settlements Programme UN-HABITAT. URL: http://www.un.org/ru/ga/habitat.
2. Official website of the United Nations Environment Programme. URL: http://www.unep.org/russian.
3. Vancouver Declaration on human settlements (1976). The United Nations. URL: http://www.un.org/ru/documents/decl_conv/declarations/pdf/vancouver.pdf.
4. Stambul Declaration on human settlements (1996). The United Nations. URL: http://www.un.org/ru/documents/decl_conv/declarations/pdf/stambul.pdf.
5. Declaration on cities and other human settlements in the new Millennium (2001). The United Nations. URL: http://www.un.org/ru/documents/ods.asp?m=A/RES/S-25/2.