@misc{indiciae5fdf8edbb230,
  title = {A new syringe pump apparatus for the retrieval and temporal analysis of helium in groundwaters and geothermal fluids},
  author = {P.H. Barry and David R. Hilton and M.D. Tryon and K. M. Brown and J.T. Kulongoski},
  year = {2009},
  doi = {10.1029/2009gc002422},
  url = {https://pubs.usgs.gov/publication/70035560},
  note = {Source identifier: 70035560}
}