1. Braarud PØ (1998) Complexity factors and prediction of crew performance (HWR-521). OECD Halden Reactor Project, Halden, Norway
2. Braarud PØ (2000) Subjective task complexity in the control room (HWR-621). OECD Halden Reactor Project, Halden, Norway
3. Braarud PØ (2001) Subjective task complexity and subjective workload: criterion validity for complex team tasks. Int J Cogn Ergon 5(3):261–273
4. Braarud PØ, Broberg H, Massaiu S (2007) Performance shaping factors and masking experiment 2006: Project status and planned analysis. In: Proceedings of the Enlarged Halden Programme Group meeting, Storefjell. OECD Halden Reactor Project, Halden, Norway
5. Collier S (1998) Development of a diagnostic complexity questionnaire (HWR-536). OECD Halden Reactor Project, Halden, Norway