the Investigation Process Research Resources site

• http://www.iprr.org
• http://www.ludwigbenner.org/arch2.htm
• http://www.iprr.org/papers/AIChE_2019.html
• https://www.sciencedirect.com/science/article/pii/S0925753518313584?dgcid=authords
• http://www.ohsbok.org.au/wp-content/uploads/2013/12/32-Models-of-causation-Safety.pdf?x71776
• http://www.sciencedirect.com/science/article/pii/S1877705815038680