Groups of Unmanned Vehicles: Differential Flatness, Trajectory Planning, and Control. - Stephen T. Pledgie; Yongxing Hao; Armando M. Ferreira; Sunil Kumar Agrawal; Robert Murphey (ICRA, 2002)

Planning and control of UGV formations in a dynamic environment: a practical framework with experiments. - Yongxing Hao; Benjamin Laxton; Sunil Kumar Agrawal; Edward Lee; Eric Benson (ICRA, 2003)

Differential flatness-based trajectory planning for multiple unmanned aerial vehicles using mixed-integer linear programming. - Yongxing Hao; Asad Davari; Ali Manesh (ACC, 2005)

Formation Planning and Control of UGVs with Trailers. - Yongxing Hao; Sunil Kumar Agrawal (Auton. Robots, 2005)

Planning and control of UGV formations in a dynamic environment: A practical framework with experiments. - Yongxing Hao; Sunil Kumar Agrawal (Robotics Auton. Syst., 2005)