@articleSzufnarowski_Schneider_2012, title=Two-dimensional dynamics of a quasi-static legged piezoelectric actuator, volume=21, DOI=10.1088/0964-1726/21/5/055007, number=5055007, journal=Smart Materials and Structures, publisher=IOP Publishing, author=Szufnarowski, Filip and Schneider, Axel, year=2012