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2. J. L. Dargan, "Proportional Plus Integral Control of Aircraft for Automated Maneuvering Formation Flight", MS Thesis, AFIT/GE/ENG/91D-14, School of Engineering,Air Force Institute of Technology (AU), Wright Patterson AFB, OH,December 1991.
3. L. E. Buzogany, "Automated Control of Aircraft in Formation Flight", MS Thesis, AFIT/GE/ENG/92D-03, School of Engineering, Air Force Lnstitute of Technology (AG),Wright Patterson AFB, December 1992.