- Approximately solving multiobjective linear programmes in objective space and an application in radiotherapy treatment planning Shao, L.* and Ehrgott, M. (2008), Mathematical Methods of Operations Research, 68: 257-276..
- Approximating the nondominated set of an MOLP by approximately solving its dual problem Shao, L.* and Ehrgott, M. (2008), Mathematical Methods of Operations Research, 68: 469-492..



