1. Approach and Landing Fatal Accidents 1980–1996, Safety Analysis Report No. SA-98-002;Ashford,1998
2. Airport safety: A Study of Accidents and Available Approach-and-Landing Aids. Flight Safety Digest March;Enders,1996
3. Documentation for the Aviation System Peformance Metrics (ASPM),2002
4. Evaluating the impact of passengers on the safety of older drivers;Hing;J. Safety Res.,2003
5. Killers in Aviation: Analysis of Critical Factors during Approach and Landing in Accidents and Normal Flight, Final Report Version 2.0 ed.;Khatwa,1998