1. Scheduling, timetabling and rostering—a special relationship?;Wren,1996
2. Recent research directions in automated timetabling;Burke;European Journal of Operational Research,2002
3. Some models of graphs for scheduling sports competitions;de Werra;Discrete Applied Mathematics,1988
4. Minimizing breaks by maximizing cuts;Elf;Operations Research Letters,2003
5. Miyashiro R, Matsui T. Semidefinite programming based approaches to the break minimization problem. Working paper 2003-28, University of Tokyo, Department of Mathematical Informatics, Japan.