A. El-Sherbeny, Nasser. “Difference of Convex Functions Optimization Methods: Algorithm of Minimum Maximal Network Flow Problem With Time-Windows”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 25, no. 1 (January 3, 2016): 67–81. Accessed May 11, 2024. https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/4774.