@article {27725,
	title = {A self-tuning resonator for vibration energy harvesting},
	journal = {Sensors and Actuators A: Physical},
	volume = {201},
	year = {2013},
	pages = {328{\textendash}334},
	author = {Aboulfotoh, Noha A. and Arafa, Mustafa H. and Megahed, Said M.}
}
