"The Balkans" 10 Aralık 2017 tarihinde Wayback Machine sitesinde arşivlendi., Global Perspectives: A Remote Sensing and World Issues Site. Wheeling Jesuit University/Center for Educational Technologies, 1999–2002.
web.archive.org
"The Balkans" 10 Aralık 2017 tarihinde Wayback Machine sitesinde arşivlendi., Global Perspectives: A Remote Sensing and World Issues Site. Wheeling Jesuit University/Center for Educational Technologies, 1999–2002.