@misc{indiciaeefccc3430bff,
  title = {MODFLOW-NWT, a Newton formulation for MODFLOW-2005},
  author = {Richard G. Niswonger and Sorab Panday and Motomu Ibaraki},
  year = {2011},
  doi = {10.3133/tm6a37},
  url = {https://pubs.usgs.gov/publication/tm6A37},
  note = {Source identifier: tm6A37}
}