Chen, Hongbo, and Xiaoxu Zhang. “Digital Transformation and Green Total Factor Productivity of Heavily Polluting Enterprises: The Mediating Role of M&A Activity and the Moderating Role of Green Innovation”. International Journal of Multidisciplinary Research 2, no. 1 (January 31, 2026): 40–64. Accessed February 4, 2026. https://ijmrscience.org/index.php/ijmr/article/view/120.