1. Preemptive scheduling of independent jobs with release and due times on open, flow and job shops;Cho,1978
2. A note on open shop preemptive schedules;Gonzales,1976
3. Open shop scheduling to minimize finish time;Gonzales;J. Assoc. Comput. Mach.,1976
4. Optimization and approximation in deterministic sequencing and scheduling: a survey;Graham,1977
5. Scheduling preemptable tasks on unrelated processors with additional resources to minimize schedule lentgh;Słowiński,1978