Climaco, João Carlos Namorado, et al. “A Study of Highways Performance With a Molp-Dea Model and an Interactive Tri-Criteria Linear Programming Package (Trimap)”. Brazilian Journal of Operations & Production Management, vol. 7, no. 1, Aug. 2010, pp. 163-79, https://bjopm.org.br/bjopm/article/view/V7N1A8.