SABAK, Grzegorz. Heuristic Analysis of Transport System Efficiency Based on Movement of Mobile Network Users. Journal of Telecommunications and Information Technology, Warsaw, Poland, v. 37, n. 3, p. 95–102, 2009. DOI: 10.26636/jtit.2009.3.945. Disponível em: https://www.jtit.pl/jtit/article/view/945. Acesso em: 10 jul. 2026.