@misc{indiciaec1a6c5409761,
  title = {Solution of water-table and anisotropic flow problems by using the strongly implicit procedure},
  author = {S. P. Larson and Peter C. Trescott},
  year = {1977},
  url = {https://pubs.usgs.gov/publication/70233523},
  note = {Source identifier: 70233523}
}