Kou, Gang, Pei Yang, Yi Peng, Hui Xiao, Feng Xiao, Yang Chen, and Fawaz E. Alsaadi. “A Cross-Platform Market Structure Analysis Method Using Online Product Reviews”. Technological and Economic Development of Economy 27, no. 5 (August 18, 2021): 992-1018. Accessed April 25, 2024. https://journals.vilniustech.lt/index.php/TEDE/article/view/12005.