1. European Commission. Second Regulatory Review on Nanomaterials (2012); available via
http://go.nature.com/2bPFN7
2. Engeman, C. D. et al. J. Nanopart. Res. 14, 749 (2012).
3. European Chemicals Agency (ECHA). Guidance for Identification and Naming of Substances under REACH and CLP (2012); available via
http://go.nature.com/vL4KzJ
4. European Parliament and Council of European Union; available via
http://go.nature.com/dIpYxp
5. Joint Research Centre. REACH Implementation Project Substance Identification of Nanomaterials (RIP-oN 1) (2011); available via
http://go.nature.com/ENYrM8
.