Koumarianos, Evangelos, Apostolos Kapsalis, und Nikolaos Avgeris. „Social Security Compliance in Times of Crisis. Evaluating the Factors for Non-Compliance in the HORECA Sectors in Greece“. Social Cohesion and Development 14, no. 2 (Januar 18, 2021): 105–122. Zugegriffen November 21, 2025. https://ejournals.epublishing.ekt.gr/index.php/SCAD/article/view/25742.