1. “On the Fuel Optimality of Cruise,”;Speyer;Journal of Aircraft,1973
2. “Nonoptimality of the Steady-State Cruise of Aircraft,”;Speyer;AIAA Journal,1976
3. Speyer, J.L., Dannemiller, D., Walker, D., “Periodic Optimal Cruise of a Hypersonic Vehicle,” AIAA Paper No. 80–1777, 1980.
4. Speyer, J.L., Dannemiller, D., Walker, D., “Periodic Control of an Atmospheric Vehicle,” Collection of Papers of the 25th Israel Annual Conference on Aviation and Astroautics, 1983, pp. 245–255.
5. “Periodic Optimal Cruise of an Atmospheric Vehicle,”;Speyer;Journal of Guidance, Control, and Dynamics,1985