Gholizadeh, Hossein, Ali Bonyadi Naeini, and Alireza Moini. “A Quantitative Model of Technological Catch-up”. International Journal of Engineering and Technology 4, no. 1 (February 24, 2015): 233–243. Accessed August 17, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/4203.