@misc{indiciaec08a3fca53de,
  title = {Field tests prove microscale NRU to upgrade low-btu gas},
  author = {Saibal Bhattacharya and K. David Newell and W. Lynn Watney and Micael Sigel},
  year = {2009},
  url = {https://pubs.usgs.gov/publication/70037421},
  note = {Source identifier: 70037421}
}