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Helium -- Isotopes -- United States -- Management. : Caught by surprise : causes and consequences of the helium-3 supply crisis : hearing before the Subcommittee on Investigations and Oversight, Committee on Science and Technology, House of Representatives, One Hundred Eleventh Congress, second session, April 22, 2010.
United States. Helium Stewardship Act of 2013. : Helium program, BLM's implementation of the Helium Stewardship Act of 2013 : testimony before the Subcommittee on Energy and Mineral Resources, Committee on Natural Resources, House of Representatives / statement of Anne-Marie Fennell.
Helium -- United States -- Marketing. : Selling the nation's helium reserve / Committee on Understanding the Impact of Selling the Helium Reserve, Board on Physics and Astronomy, National Materials Advisory Board, Division on Engineering and Physical Sciences, National Research Council of the National Academies.
Helium -- United States -- Underground storage -- Costs. : Federal helium program : oversight hearing before the Subcommittee on Energy and Mineral Resources of the Committee on Natural Resources, House of Representatives, One Hundred Third Congress, first session, on the administration of the federal helium program, hearing held in Washington, DC, May 20, 1993.
Helium -- Viscosity. : A method for calculating viscosity and thermal conductivity of a helium-xenon gas mixture : ground tests / Paul K. Johnson.
Hellas Planitia (Mars) -- Maps. : Geologic map of MTM -40277, -45277, -40272, and -45272 quadrangles, eastern Hellas Planitia of Mars / by Leslie F. Bleamaster, III, and David A. Crown ; prepared for the National Aeronautics and Space Administration.