(EN) RUSSIAN ELECTION WATCH Vol.3, No.5 (PDF), in Harvard University (Belfer Center for Science & International Affairs, Davis Center for Russian & Eurasian Studies) and Indiana University-Bloomington, febbraio 2004. URL consultato il 29 ottobre 2018.
(EN) RUSSIAN ELECTION WATCH Vol.3, No.6 (PDF), in Harvard University (Belfer Center for Science & International Affairs, Davis Center for Russian & Eurasian Studies) and Indiana University-Bloomington, marzo 2004. URL consultato il 23 ottobre 2018.
(EN) RUSSIAN ELECTION WATCH Vol.3, No.4 (PDF), in Harvard University (Belfer Center for Science & International Affairs, Davis Center for Russian & Eurasian Studies) and Indiana University-Bloomington, gennaio 2004. URL consultato il 29 ottobre 2018.
(EN) RUSSIAN ELECTION WATCH Vol.3, No.7 (PDF), in Harvard University (Belfer Center for Science & International Affairs, Davis Center for Russian & Eurasian Studies) and Indiana University-Bloomington, aprile 2004. URL consultato il 29 ottobre 2018.