1. A.C. Veca, Vibration Effects on Helicopter Reliability and Maintainability, USAAMRDL Technical Report 73-11, April 1973.
2. Aeronautical Design Standard, Standard Practice, Requirements for Rotorcraft Vibration Specifications, Modeling and Testing, ADS-27A-SP, May 2, 2006.
3. International Standard, ISO-2631-1, Mechanical vibration and shock – Evaluation of human exposure to whole-body vibration.
4. U.S. Federal Aviation Regulation, FAR-29.251.
5. A.R.S. Bramwell, D. Balmford, G. Done, Bramwell's Helicopter Dynamics, second ed., AIAA (American Institute of Aeronautics & Ast); second ed., 2001.