Zhao, Wanxiao, Chengyuan Wang, Liang Wan, Qiong Wang, and Biao Luo. “Customer Concentration and Exploratory Innovation: The Mediating Effect of Perceived Performance-Reducing Threats”. Journal of Business Economics and Management 22, no. 4 (June 15, 2021): 940-957. Accessed November 7, 2024. https://jest.vgtu.lt/index.php/JBEM/article/view/14677.