Dissel, A., Kothari, A., and Lewis, M., “Investigation of Two-Stage-to-Orbit Air-Breathing Launch Vehicle Configurations”, Journal of Spacecraft and Rockets, AIAA, Vol. 43, No. 3, May-June 2006, pp. 568-574.

Dissel, A., Kothari, A., and Lewis, M., “Comparison of Horizontally and Vertically Launched Air-breathing and Rocket Vehicles”, Journal of Spacecraft and Rockets, AIAA, Vol. 43, No. 1, Jan-Feb 2006, pp. 161-169 .

Young, G., Balar, R., Gupta, A., Yu, K., and Kothari, A.,, “Characterization of Scramjet Combustor with Transverse Fuel Injection”, AIAA paper no. 2006-1377, presented at the AIAA Aerospace Sciences Conference, Reno, Nevada, Jan 2006.

Dissel, A., Kothari, A., and Lewis, M., “Weight Growth Study of Reusable Launch Vehicle Systems”, AIAA paper no. 2005-4369, presented at the 41st AIAA/SAE/ASME/ASEE Joint Propulsion Conference, July 2005.

Dissel, A., Kothari, A., Raghavan, V., and Lewis, M., “System Analysis of Launch Transportation Options for Crew Exploration Vehicle”, AIAA paper no. 2005-4366, presented at the 41st AIAA/ SAE/ ASME/ ASEE Joint Propulsion Conference, July 2005.

Dissel, A. Kothari, A., and Lewis, M., “Investigation of Two-Stage-to-Orbit Air-Breathing Launch Vehicle Configurations”, AIAA-2005-3244, AIAA/CIRA International Hypersonic and Spaceplane Conference, AIAA/CIRA, Capua, Italy, May 2005.

Dissel, A., Kothari, A., Raghavan, V. and Lewis, M., “Comparison of HTHL and VTHL Air-breathing and Rocket Systems for Access to Space”, AIAA paper no. 2004-3988, presented at the 40th AIAA/SAE/ASME/ASEE Joint Propulsion Conference, July 2004.

Tarpley, C., and Kothari, A., “Effect of Trimmed Flight on Inward-Turning SSTO RLV GTOW,” at the AIAA 7th International Space Planes and Hypersonic Systems and Technologies Conference, AIAA Paper 2003-6995, Norfolk, Virginia, December 2003.

Billig, F. and Kothari, A., “Streamline Tracing: Technique for Designing Hypersonic Vehicles”, Journal of Propulsion and Power 2000, 0748-4658 vol.16 no.3, pp. 465-471.

Tarpley, C., Kothari, A., and Pines D., “ Low Speed Stability Analysis of the Dual Fuel Waverider Configuration“, AIAA 7th International Space Planes and Hypersonic Systems and Technologies Conference, AIAA Paper 96-4596, Norfolk, VA, November 1996.

Kothari, A., Tarpley, C., McLaughlin, T. A., Babu, B. S. and Livingston J., “Hypersonic Vehicle Design Using Inward Turning Flowfields”, AIAA paper no. 96-2552, presented at the 32nd AIAA/SAE/ASME/ASEE Joint Propulsion Conference, July 1996.

Tarpley, C., Kothari, A., and Lewis, M. J., " Radiation Safety Issues in Single-Stage- To-Orbit Spacecraft Powered by Antimatter Rocket Engines", Journal of Propulsion and Power, Vol. 8, No. 1, Jan-Feb 1992, pp. 127-135.

Anderson J., Lewis M. J., Kothari, A., and Corda S., "Hypersonic Waveriders for Planetary Atmospheres," Journal of Spacecraft and Rockets, Vol. 28, no 4, July-Aug 1991, pp. 401-410.

Kothari, A., and Bowcutt, K. G., " Leading Edge Optimization for Hypersonic Vehicles", Astrox Corporation, presented at the First International Hypersonic Waverider Symposium, Univ. of Maryland, College Park, MD, Oct 1990.

Lewis, M. and Kothari, A.,, " Hypersonic Waveriders for Planetary Maneuvering", presented at the First International Hypersonic Waverider Symposium, Univ. of Maryland, College Park, MD, Oct 1990.

Lewis M., and Kothari, A., " Space Propulsion Benefits with Hypersonic Aerogravity Maneuvering", AIAA paper no. 90-2368, presented at the 26th AIAA/ SAE/ ASME/ ASEE Joint Propulsion Conference, July 1990.

Tarpley K. Lewis M. J., and Kothari, A., " Some Safety Concerns for Single Stage to Orbit Antimatter Propulsion", AIAA paper no. 90-2365, 26th AIAA/ SAE/ ASME/ ASEE Joint Propulsion Conference, July 1990.

Anderson J., Lewis M. J., Kothari, A., and Corda S., "Hypersonic Waveriders for Planetary Atmospheres," AIAA paper no. 90 0538, AIAA 28th Aerospace Sciences Meeting, Jan 1990.