Hvam, Lars, Anders Haug, Niels Henrik Mortensen, and Christian Thuesen. “OBSERVED BENEFITS FROM PRODUCT CONFIGURATION SYSTEMS”. International Journal of Industrial Engineering: Theory, Applications and Practice 20, no. 5-6 (September 5, 2013). Accessed April 30, 2026. https://ijietap.com/index.php/ijie/article/view/890.