1. Band widening of piezoelectric vibration energy harvesters by utilizing mechanical stoppers and magnets. (November 2015) Authors: Maeguchi, T; Masuda, A; Katsumura, H; Kagata, H; Okumura, H Journal: Journal of physics Issue: Number 660(2015) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗