1. Airfoil design and rotorcraft performance;Bousman,2002
2. Helicopter performance: Transportation latest chromosome. 21st Nikolsky lecture;Carlson;J. Am. Helicopter Soc.,2002
3. Rotorcraft analytical improvement needed to reduce developmental risk - The 1989 Alexander A. Nikolsky Lecture;Crawford,1989
4. The first 50 years were fine…But what should we do for an encore? - The 1994 Alexander A. Nikolsky Lecture;Fradenburgh,1994
5. Development of helicopter design capability. Progress from 1970 to 1993 - The 1993 Alexander A. Nikolsky Lecture;Grina,1993