Modeling and Analysis of Butterfly Loops via Preisach Operators and its Application in a Piezoelectric Material. - Bayu Jayawardhana; M. A. Vasquez Beltran; W. J. van de Beek; C. de Jonge; M. Acuautla; Silvia Damerio; Reynier Peletier; Beatriz Noheda; Robert Huisman (CDC, 2018)