Freitas, J. E. de F., & de Oliveira, L. G. (2008). The Systems Engineering and Cops Theory as Management Tools for Information Technology Complex Projects. Journal of Information Systems and Technology Management, 5(1), 15–36. Retrieved from https://jistem.tecsi.org/index.php/jistem/article/view/10.4301%252FS1807-17752008000100002