This list is in no particular order, and will be edited and refined on an ongoing basis.
Last Updated: March 18, 2020.

1. Stormcrow Industry Report: “Things are Not Great, but They Will Get Better” (2020)
   
2. GeoMega Report: Rare Earth Element (REE) Recycling for the Permanent Magnet Industry (2019)
   
3. US Geological Survey: Mineral Commodity Summaries (2020)
   
4. US Geological Survey: Rare Earth Fact Sheet (2020)
   
5. US Geological Survey: Critical Mineral Resources of the United States—Economic and Environmental Geology and Prospects for Future Supply (2017)
   
6. MDPI: Global Potential of Rare Earth Resources and Rare Earth Demand from Clean Technologies (2017)
   
7. Roskill: Rare Earths, Outlook to 2029 (2020)
   https://roskill.com/market-report/rare-earths/
   
8. US Geological Survey: Evaluating the mineral commodity supply risk of the U.S. manufacturing sector (2020)
   https://advances.sciencemag.org/content/6/8/eaay8647/tab-pdf