Li, Deng-Feng, and Pei-De Liu. “Big Data and Intelligent Decision Methods in Economy, Innovation and Sustainable Development”. Technological and Economic Development of Economy 26, no. 5 (August 28, 2020): 970-973. Accessed April 20, 2024. https://journals.vilniustech.lt/index.php/TEDE/article/view/13354.