4Adewumi A O, Sawyerr B A, Montaz A M. A heuristic solution to the university timetabling problem[J]. Engineering Computations, 2009,26(7-8):972-984.
5Shi Juan, Su Yidan, Xie Min. Research on application of IGA(Immune Genetic algorithm) to the solution of coursetimetabling problem [C]// Proceedings of the 4th International Conference on Computer Science and Education. 2009:1105-1109.