D. Shen, J.-H. Park, J. Ajitsaria, S.-Y. Choe, H. C. Wikle, and D.-J. Kim, “The design, fabrication and evaluation of a MEMS PZT cantilever with an integrated Si proof mass for vibration energy harvesting,” J. Micromech. Microeng., Vol. 18, pp. 055017, (7 pp.), 2008, ISSN: 0960-1317.

D. Shen, J.-H. Park, J. Ajitsaria, S.-Y. Choe, H. C. Wikle, and D.-J. Kim, “The design, fabrication and evaluation of a MEMS PZT cantilever with an integrated Si proof mass for vibration energy harvesting,” J. Micromech. Microeng., Vol. 18, pp. 055017, (7 pp.), 2008, ISSN: 0960-1317.

D.-J. Kim, J.-H. Park, D. Shen, J. Ajitsaria, and S.-Y. Choe, “PZT-based MEMS Devices for Vibration Energy Harvesting,” Proc. of the 17th Int. Symp. on the Applications of Ferroelectrics & 2008 Meeting of the Electronics Division of the American Ceramic Society,  EH004, 2008.

D.-J. Kim, J.-H. Park, D. Shen, J. Ajitsaria, and S.-Y. Choe, “PZT-based MEMS Devices for Vibration Energy Harvesting,” Proc. of the 17th Int. Symp. on the Applications of Ferroelectrics & 2008 Meeting of the Electronics Division of the American Ceramic Society,  EH004, 2008.