1. The Year in Review: Electric Propulsion;Ho;Aerospace America,2001
2. Optimal Low-Thrust Escape Trajectories Using Gravity Assist;Casalino;Journal of Guidance, Control, and Dynamics,1999
3. Optimization Procedure for Preliminary Design of Opposition-Class Mars Missions;Casalino;Journal of Guidance, Control, and Dynamics,1998
4. Optimization of ΔV Earth-Gravity-Assist Trajectories;Casalino;Journal of Guidance, Control, and Dynamics,1998
5. Trajectories towards Near-Earth Objects Using Solar Electric Propulsion;Colasurdo;Paper AAS 99-339,1999