1. Aircraft dynamic loads from substandard landing sites;Richmond;Boeing Rep. AFFDL -TR — 67 — 145,1968
2. Aircraft landing gear dynamic loads from operation in clay and sandy soil;Crenshaw;Lockheed-Georgia Co. and IIT Res. Inst. Rep. AFFDL — TR — 69 — 51,1971
3. Aircraft tyre behaviour during high speed operations in soils;Leland;NASA, TND — 6813,1972