1. Sustainability of Rare earths—An Overview of the State of Knowledge;B Mclellan;Minerals,2013
2. USGS (2015) Mineral Commodity Summaries: Rare earths 2015. Available: http://minerals.usgs.gov/minerals/pubs/commodity/rare_earths/mcs-2015-raree.pdf. Accessed 2015 December 13.
3. Rare earths elements in China: Policies and narratives of reinventing an industry;J Wübbeke;Resources Policy,2013
4. The rare earth crisis—the supply/demand situation for 2010–2015;KA Gschneidner;Mater Matters,2011
5. Morrison WM, Tang R (2012) China's Rare earths industry and export regime: economic and trade implications for the United States. Congressional Research Service Reports. Library of Congress. Congressional Research Service R42510. Available: https://www.fas.org/sgp/crs/row/R42510.pdf. Accessed 2016 January 3.