Friswell, M., Jacquelin, E., Adhikari, S., Friswell, M. I., & Adhikari, S. (2011). A piezoelectric device for impact energy harvesting. Smart Materials and Structures, 20(10), p. 105008. doi:10.1088/0964-1726/20/10/105008

Friswell, Michael, E. Jacquelin, S. Adhikari, M I. Friswell, and Sondipon Adhikari. "A Piezoelectric Device for Impact Energy Harvesting." Smart Materials and Structures 20, no. 10 (2011): 105008.

Friswell, Michael, et al. "A Piezoelectric Device for Impact Energy Harvesting." Smart Materials and Structures 20.10 (2011): 105008.