@misc{indiciae6c6da788eedb,
  title = {Controls on the distribution and isotopic composition of helium in deep ground-water flows},
  author = {X. Zhao and T.L.B. Fritzel and H.A.M. Quinodoz and C.M. Bethke and T. Torgersen},
  year = {1998},
  doi = {10.1130/0091-7613(1998)026<0291:cotdai>2.3.co;2},
  url = {https://pubs.usgs.gov/publication/70021104},
  note = {Source identifier: 70021104}
}