Chen, Yongdang, Zhiqiang Bao, Huijuan Ren, Huali Ma, and Guangmei Liu. “Product Development Integration Techniques and System Based on CAx and Knowledge Management”. International Journal of Online and Biomedical Engineering (iJOE) 9, no. S4 (May 1, 2013): pp. 5–9. Accessed April 23, 2024. https://online-journals.org/index.php/i-joe/article/view/2584.