Lammers, Thorsten, Matthias Guertler, and Henning Skirde. “Can Product Modularization Approaches Help Address Challenges in Technical Project Portfolio Management? – Laying the Foundations for a Methodology Transfer”. International Journal of Information Systems and Project Management 10, no. 2 (July 6, 2022): 26–42. Accessed April 20, 2024. https://revistas.uminho.pt/index.php/ijispm/article/view/4083.