H∞ control of a class of nonlinear systems using describing functions and simplicial algorithms. - Richard D. Colgren; Edmond A. Jonckheere (IEEE Trans. Autom. Control., 1997)

High-performance electromechanical direct-drive actuators for flight vehicles. - Sergey Edward Lyshevski; Richard D. Colgren; Victor A. Skormin (ACC, 2001)

Decentralized Control of Large-Scale Uncertain Nonlinear Systems by Linear Output Feedback. - Richard D. Colgren; Michael T. Frye; Chunjiang Qian (Commun. Inf. Syst., 2004)

Receding horizon control of a 6-DOF model of the raptor 50 helicopter: robustness to changing flight conditions. - Michael T. Frye; Chunjiang Qian; Richard D. Colgren (CCA, 2005)

The Raptor 50 6-DOF simulation environment for flight control research. - Michael T. Frye; Subodh Bhandari; Richard D. Colgren (ACC, 2006)

H-Infinity gain scheduling design for the meridian UAS for a broader range of operation and for fault tolerant applications. - Gonzalo Andres Garcia; Shawn Shahriar Keshmiri; Richard D. Colgren (ICCA, 2011)