1. Waste Electrical and Electronic Equipment (WEEE);EU-Directive 2002/96/EC;Off. J. Eur. Union,2003
2. Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment (RoHS);EU-Directive 2002/95/EC;Off. J. Eur. Union,2003
3. Lead-Free Piezoceramics;Saito;Nature,2004