Georgakalou, Maria, and Kostas Koutsikos. “Project Management: Lean Vs. Agile Methodology”. International Conference on Business and Economics - Hellenic Open University 1, no. 1 (June 8, 2023). Accessed April 14, 2025. https://eproceedings.epublishing.ekt.gr/index.php/ICBE-HOU/article/view/5312.