1. 3Plast, Printable, Pyroelectrical and Piezoelectrical Large-Area Sensor Technology, EU-FP7 project. Available from: http://www.3plast-sensor.eu.
2. Advances in lead-free piezoelectric materials for sensors and actuators;Aksel;Sensors,2010
3. IEEE Standard on Piezoelectricity;ANSI/IEEE Std 176-1987,1987
4. Piezoelectric Transducers and Applications;Arnau,2008
5. Acoustic Fields and Waves in Solids;Auld,1973