Holly, Fabian, Clemens Schild, and Sebastian Schlund. “Development of an Assessment Model for Measuring Mechanical Engineering Companies’ Circularity and Maturity Levels”. Journal of Circular Economy 2, no. 1 (February 28, 2024). Accessed May 22, 2026. https://circulareconomyjournal.org/ojs/JoCE/article/view/126.