1. G. A. Dressler and J. M. Bauer, TRW Pintle Engine Heritage and Performance Characteristics, 36th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Huntsville, AL, 2000.
2. R. Gilroy and R. Sackheim, The Lunar Module Descent engine-A Historical Summary, 25th AIAA/ ASME/ SAE/ ASEE Joint Propulsion Conference and Exhibit, Monterey, CA, 1989.
3. M. J. Casiano, J. R. Hulka, and V. Yang, Liquid-Propellant Rocket Engine Throttling: A Comprehensive Review, Journal of Propulsion and Power, Vol. 26, No. 5, 2010.
4. J. Calvignac, L. Dang, T. L. Tramel, and L. Paseur, Design and Testing of Non-Toxic RCS Thrusters For Second Generation Reusable Launch Vehicle, 39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Huntsville, AL, 2003.
5. J. M. Gromski, A. N. Majamaki, S. G. Chianese, V. D. Weinstock and T. S. Kim, Northrop Grumman TR202 LOX/LH2 Deep Throttling Engine Technology Project Status, 46th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, Nashville, TN, 2010.