Jia Hui Ong, Jason Teo. “Application of Hyper-Heuristics in Real-World Spacecraft Trajectory Optimization under Limited Evaluation Constraints Using Hyper-Heuristics ”. International Journal of Advanced Science and Technology, Vol. 29, no. 08, May 2020, pp. 01 -07, http://sersc.org/journals/index.php/IJAST/article/view/16963.