@misc{indiciaef02939ff902f,
  title = {The frontal method in hydrodynamics simulations},
  author = {Roy A. Walters},
  year = {1980},
  doi = {10.1016/0045-7930(80)90016-x},
  url = {https://pubs.usgs.gov/publication/70012629},
  note = {Source identifier: 70012629}
}