1. Empa. The ewaste guide; 2005. Available at: www.ewaste.ch; accessed 18.04.2005.
2. Hilty LM, Wäger P, Lehmann M, Hischier R, Ruddy T, Binswanger M. The future impact ICT on environmental sustainability. Refinement and quantification. Fourth Interim Report; 2004. Institute for Prospective Technological Studies (IPTS), Sevilla, 2004, available at: http://cleantech.jrc.es/pages/ct8.htm; accessed 18.04.2005.
3. Hilty LM, Behrendt S, Binswanger M, Bruinink A, Erdmann L, Froehlich J, et al. The precautionary principle in the information society—effects of pervasive computing on health and environment. Second revised edition. Edited by the Swiss Center for Technology Assessment (TA-SWISS), Bern, Switzerland (TA46e/2005), and the Scientific Technology Options Assessment at the European Parliament (STOA 125 EN); 2005. available at: www.ta-swiss.ch; accessed 18.04.2005.
4. Horvath J. Borne by blood: the other–and often bloody–side of the ‘digital revolution’; 2002. Available at: www.heise.de/tp/r4/artikel/12/12860/1.html; accessed 18.04.2005.
5. Oertel B, Wölk M, Hilty LM, Köhler A. Risks and opportunities of the use of RFID systems. Bonn: Bundesamt für Sicherheit in der Informationstechnik; 2005. Available at: www.bsi.de.