References to the "Recycled metals" text

12 Environmental challenges of anthropogenic metals flows and cycles. van der Voet, E., Salminen, R., Eckelman, M., Norgate, T., Mudd, G., Hisschier, R., ... de Koning, A.. Environmental challenges of anthropogenic metals flows and cycles. United Nations Environment Programme. 2013

Markus Reuter et al., Metal Recycling: Opportunities, Limits, Infrastructure, A Report of the Working Group on the Global Metal Flows to the Inter- national Resource Panel , UNEP2013.

Shane Donatello, Hans Moons and Oliver Wolf (JRC): Revision of EU Ecolabel criteria for furniture products, final technical report, 2017

13 SHAHZAD AHMAD * et al. ISSN: 2250–3676, INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE & ADVANCED TECHNOLOGY Volume-2, Issue-4, 871 – 875, IJESAT, July-Aug 2012