1. Andrews, W. H.: Flight Evaluation of the Wing Vortex Wake Generated by Large Jet Transports. Symposium on Aircraft Wake Turbulence, Seattle, September, 1970.
2. McGowen, W. A.: Trailing Vortex Hazard. Society of Automotive Engineers Business Aircraft Meeting, Wichita, Kansas, April, 1968, Paper G80220.
3. McCormick, B. W., Tangier, J. L., and Sherrieb, H. E.: Structure of Trailing Vortices. Journal of Aircraft, Vol. 5, May-June, 1968, pp. 260–267.
4. Drinkwater, F.: Flight Operations, NASA-Ames Research Center, Moffett Field, Calif., Flight Test Reports.
5. Crow, S. C., and Murman, E. M.: Trailing-Vortex Experiments at Moses Lake, Boeing Scientific Research Laboratories Technical Communication 009, February, 1970.