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"RUSSIAN ELECTION WATCH Vol.3, No.4"(PDF). Harvard University (Belfer Center for Science & International Affairs, Davis Center for Russian & Eurasian Studies) and Indiana University-Bloomington. January 2004. Retrieved October 29, 2018.
"RUSSIAN ELECTION WATCH Vol.3, No.7"(PDF). www.belfercenter.org. Harvard University (Belfer Center for Science & International Affairs, Davis Center for Russian & Eurasian Studies) and Indiana University-Bloomington. April 2004. Retrieved October 29, 2018.