1. Survey of CPM Scheduling Packages and Related Project Control Programs;Webster,1991
2. Scheduling of project networks by job assignment;Drexel;Management Science,1991
3. Instruction 5000.2 US Department of Defence, USA (23 Feb 1991) (updated without change in text from DODI 700.2 (‘Performance measurement for selected acquisition’))
4. Cost and schedule control systems criteria for contract performance measurement,1982