@article{campolo2003efficient, title = {Efficient charge recovery method for driving piezoelectric actuators with quasi-square waves}, author = {Campolo, Domenico and Sitti, Metin and Fearing, Ronald S}, journal = {IEEE transactions on ultrasonics, ferroelectrics, and frequency control}, volume = {50}, number = {3}, pages = {237--244}, publisher = {IEEE}, year = {2003}, doi = {} }