Jansen, K., A. Lassota, M. Maack, and T. Pikies. “Total Completion Time Minimization for Scheduling With Incompatibility Cliques”. Proceedings of the International Conference on Automated Planning and Scheduling, vol. 31, no. 1, May 2021, pp. 192-00, doi:10.1609/icaps.v31i1.15962.