Kletzander, L., N. Musliu, J. Gärtner, T. Krennwallner, and W. Schafhauser. “Exact Methods for Extended Rotating Workforce Scheduling Problems”. Proceedings of the International Conference on Automated Planning and Scheduling, vol. 29, no. 1, May 2021, pp. 519-27, doi:10.1609/icaps.v29i1.3518.