RZEPAKOWSKI, Piotr. Incorporating Customer Preference Information into the Forecasting of Service Sales. Journal of Telecommunications and Information Technology, [S. l.], v. 37, n. 3, p. 50–58, 2009. DOI: 10.26636/jtit.2009.3.938. Disponível em: https://jtit.pl/jtit/article/view/938. Acesso em: 30 may. 2026.