1. Bar-Cohen Y.Electroactive Polymer (EAP) Actuators as Artificial Muscles – Reality, Potential and Challenges, Second Edition.SPIE Press, WA, USA, PM136, 1–765 (2004).
2. Bar-Cohen Y, Breazeal C.Biologically-Inspired Intelligent Robots.SPIE Press, WA, USA, PM122, 1–393 (2003).
3. Roentgen WC. About the changes in shape and volume of dielectrics caused by electricity, section III. In:Annual Physics and Chemistry Series, Vol. 11.Wiedemann G (Ed.). John Ambrosius Barth Publisher, Leipzig, Germany, 771–786 (1880).
4. Bar-Cohen Y.Proceedings of the first SPIE’s Electroactive Polymer Actuators and Devices (EAPAD) Conf., Smart Structures and Materials Symposium, Volume 3669,1–414 (1999).