Papanikolaou, Vaia, Yiannis Roussakis, und Panagiotis Tzionas. „Measuring Democratization and Detecting State Transitions“. HAPSc Policy Briefs Series 1, no. 2 (Dezember 29, 2020): 51–58. Zugegriffen April 3, 2025. https://ejournals.epublishing.ekt.gr/index.php/hapscpbs/article/view/26476.