TY  - RPRT
TI  - Economics, helium, and the U.S. Federal Helium Reserve: Summary and outlook
AU  - Steven T. Anderson
PY  - 2017
DO  - 10.1007/s11053-017-9359-y
UR  - https://pubs.usgs.gov/publication/70199808
ID  - 70199808
ER  -