Chang, Bao-Guang, and Kun-Shan Wu. “Concave Effect of Financial Flexibility on Semiconductor Industry Performance: Quantile Regression Approach”. Technological and Economic Development of Economy 28, no. 4 (June 7, 2022): 948–978. Accessed November 5, 2024. https://mma.vgtu.lt/index.php/TEDE/article/view/16622.