Paulo Buchsbaum (June 9, 2012). "Modified Pert Simulation"(PDF). Greatsolutions.com.br. Archived from the original on December 23, 2018. Retrieved July 14, 2017.
Paulo Buchsbaum (June 9, 2012). "Modified Pert Simulation"(PDF). Greatsolutions.com.br. Archived from the original on December 23, 2018. Retrieved July 14, 2017.