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- [37] Economics, Helium, and the U.S. Federal Helium Reserve: Summary and Outlook Natural Resources Research, 2018, 27 : 455 - 477
- [38] 1995 business outlook: U.S. companies look abroad for growth Medical Device and Diagnostic Industry, 1995, 17 (03): : 56 - 63
- [39] The outlook for U.S. nuclear power in the 21st century Electricity Journal, 2004, 17 (08): : 79 - 86