1. European Portable Battery Association, 2008, http://www.epbaeurope.net.
2. European Battery Recycling Association, 2008, http://www.ebrarecycling.org.
3. European Union, 2008, http://europa.eu.int.
4. An overview on the current processes for the recycling of batteries
5. W. Lindermann, Process for the recovery of raw materials from pre-sorted collected waste, especially scrap electrochemical batteries and accumulators, United States patent application US 5,575,907 (1996).