Silva, T.M.; Bouvier, J.B.; Xu, K.; Hirabayashi, M.; and Ho, K.; “Spacecraft Trajectory Tracking and Parameter Estimation Around a Splitting Contact Binary Asteroid,” Acta Astronautica, Vol. 171, pp. 280-289, June, 2020. 

Jagannatha, B.B.; and Ho, K.; “Event-Driven Network Model for Space Mission Optimization with High-Thrust and Low-Thrust Spacecraft,”Journal of Spacecraft and Rockets, Vol. 57, No. 3, pp. 446-463, March, 2020.

Sarton du Jonchay, T.; Chen, H.; Wieger, A.; Szajnfarber, Z.; and Ho, K.; “Space Architecture Design for Commercial Suitability: A Case Study in In-Situ Resource Utilization Systems,” Acta Astronautica, Vol. 175, pp. 45-50, October, 2020.

Ho, K.; Wang, H.; DeTrempe, P.A.; Sarton du Jonchay, T.; and Tomita, K.; “Semi-Analytical Model for Design and Analysis of On-Orbit Servicing Architecture,” Journal of Spacecraft and Rockets, May, 2020.

Rowell, L.F.; Braun, R.D.; Olds, J.R.; and Unal, R.; "Multidisciplinary Conceptual Design Optimization of Space Transportation Systems," Journal of Aircraft, Vol. 36, No. 1, pp. 218-226, Jan-Feb, 1999.

Olds, J.R.; "Two Options for Flight Testing Rocket-Based Combined-Cycle Engines,"Journal of Spacecraft and Rockets, Vol. 36, No. 5, pp. 693-700, Sept-Oct, 1999.