Ribeiro, C., T. Pinto, Z. Vale, and J. Baptista. “Customized Normalization Clustering Meth-Odology for Consumers With Heterogeneous Characteristics”. ADCAIJ: Advances in Distributed Computing and Artificial Intelligence Journal, vol. 7, no. 2, June 2018, pp. 53-69, doi:10.14201/ADCAIJ2018725369.