Peng, Xin-Yu, Xing-Yun Zou, Xin-Xin Zhao, and Chun-Ping Chang. “How Does Economic Policy Uncertainty Affect Green Innovation?”. Technological and Economic Development of Economy 29, no. 1 (January 20, 2023): 114–140. Accessed July 2, 2024. https://aviation.vgtu.lt/index.php/TEDE/article/view/17760.