Koufopoulou, P., C. C. Williams, A. Vozikis, K. Souliotis, and A. Samprakos. “Estimating Shadow Economy Size in Greece 2000 - 2018: A Flexible MIMIC Approach”. SPOUDAI Journal of Economics and Business, vol. 71, no. 3-4, Apr. 2021, pp. 23-47, https://spoudai.org/index.php/journal/article/view/95.