1. Rotorcraft analytical improvement needed to reduce development risk - the 1989 Alexander A. Nikolsky lecture;Crawford;J. Am. Helicopter Soc.,1990
2. Padfield , G.D. Helicopter Handling Qualities and Flight Control - Is the Helicopter Community Prepared for Change? Overview Paper, Helicopter Handling Qualities and Control, RAeS International Conference 1988
3. Dunford , P. V-22; Lessons learned from the development program (presentation only), 59 th Annual Forum of the American Helicopter Society 2013
4. Anonymous Handling Qualities Requirements for Military Rotorcraft, TTCP Achievement Award 1994