@misc{indiciaece2fb2964435,
  title = {Negative hydrogen ion sources for particle accelerators: Sustainability issues and recent improvements in long-term operations},
  author = {Welton, Robert F. and Bollinger, Dan and Dehnel, Morgan and Draganic, Ilija and Faircloth, Dan and Han, Baoxi and Lettry, Jacques and Stockli, Martin P. and Tarvainen, Olli and Ueno, Akira},
  year = {2022},
  doi = {10.1088/1742-6596/2244/1/012045},
  url = {https://www.osti.gov/biblio/1871862},
  note = {Source identifier: 1871862}
}