"Russian Election Watch, vol. 3, no. 6"(PDF). Harvard University (Belfer Center for Science & International Affairs, Davis Center for Russian & Eurasian Studies) and Indiana University-Bloomington. March 2004. Archived from the original(PDF) on 2 March 2018. Retrieved 23 October 2018.
"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. Archived from the original(PDF) on 30 October 2018. Retrieved 29 October 2018.
"Russian Election Watch, vol. 3, no. 6"(PDF). Harvard University (Belfer Center for Science & International Affairs, Davis Center for Russian & Eurasian Studies) and Indiana University-Bloomington. March 2004. Archived from the original(PDF) on 2 March 2018. Retrieved 23 October 2018.
"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. Archived from the original(PDF) on 30 October 2018. Retrieved 29 October 2018.