Lin, H.-H., H.-T. Li, Y.-S. Wang, T. H. Tseng, Y.-L. Kao, and M.-Y. Wu. “Predicting Customer Lifetime Value for Hypermarket Private Label Products”. Journal of Business Economics and Management, vol. 18, no. 4, Aug. 2017, pp. 619-35, doi:10.3846/16111699.2017.1308879.