1. (1) Freedonia Industry Study, World Batteries, (2002).
2. (2) Epstein, A.H., Senturia, S.D., Al-Midani, O., Anathasuresh, G., Ayon, A., Breuer, K., Chen, K.-S., Ehrich, F.E., Esteve, E., Frechette, L., Gauba, G., Ghodssi, R., Groshenry, C., Jacobson, S., Kerrebrock, J.L., Lang, J.H., Lin, C.-C., London, A., Lopata, J., Mehra, A., Mur Miranda, J.O., Nagle, S., Orr, D.J., Piekos, E., Schmidt, M.A., Shirley, G., Spearing, S.M., Tan, C.S., Tzeng, Y.-S. and Waitz, I.A., Micro-Heat Engines, Gas Turbines, and Rocket Engines─the MIT Microengine Project─, 28th AIAA Paper 97-1773, (1997), pp.1-12.
3. (3) Fernandez-Pello, A.C., Fu, K., Knobloch, A.J., Martinez, F.C., Walther, D.C., Pisano, A.P., Liepmann, D., Maruta, K. and Miyasaka, K., Design and Experimental Results of Small-Scale Rotary Engines, Proc. 2001 Int. Mechanical Engineering Congr. and Expo. (IMECE), ASME Publication IMECE/MEMS-23924, (2001).
4. Development of a soldier-portable fuel cell power system
5. (5) Schaevitz, S., Franz, A.J., Jensen, K.F. and Schmidt, M.A., A Combustion-Based MEMS Thermoelectric Power Generator, Proc. 11th Int. Conf. on Solid-State Sensors and Actuators, Munich, Germany, (2001), pp.30-33.