Jansen, Klaus Algorithms and Complexity, MPI for Informatics, Max Planck Society;
Jansen, K. (1998). The Mutual Exclusion Scheduling Problem for Permutation and Comparability Graphs. In M. Morvan, C. Meinel, & D. Krob (Eds.), Proceedings of the 15th Annual Symposium on Theoretical Aspects of Computer Science (STACS-98) (pp. 287-297). Berlin, Germany: Springer.