1. 1) Damjanovic, D., Hollenstein, E., Davis, M. and Setter, N., POLECER International Conference, “Piezoceramics for end-users II -from electroactive materials to multifunctional integrated devices,” March 6th-8th 2006, Lillehammer (Norway).
2. 2) Takenaka, T., Nagata, H., Hiruma, Y., Yoshii, K. and Matsumoto, K., POLECER International Conference “Piezoceramics for end-users II -from Electroactive Materials to Multifunctional Integrated Devices,” March 6th-8th 2006, Lillehammer (Norway).
3. 3) Zhang, S. and Shrout, T.R., “Lead-free Piezoelectrics vs. PZT Ceramics?,” POLECER International Conference “Piezoceramics for end-users II -from Electroactive Materials to Multifunctional Integrated Devices,” March 6th-8th 2006, Lillehammer (Norway).
4. 4) Directive 2002/96/EC of the European Parliament and of the Council of 27.01.2003 on Waste Electrical and Electronic Equipment (WEEE), Official Journal of the European Union L37/24-L37/38.
5. 5) Lead free piezoceramics based on alkaline niobates, EU-funded project GRD 1-2000-25682 (5th framework programme: 01.03-2001-29.02.2004)