Propeller Guard Designs: An Investigation Using CFD. Senior Thesis by Oliver Lee. University of Sydney, Australia. November 2011. Computational Fluid Dynamics is used to investigate propeller guard efficiencies.
Aspects of the Propeller Safety Debate chart
Houseboat Propeller Regulation Proposed and Withdrawn by USCG: Analysis by PGIC
History of Boat Propeller Safety
Mitigating Boat Propeller Injuries & Fatalities Chart