@misc{indiciae5dfe571abdca,
  title = {Invasion percolation in a hydrostatic or permeability gradient: Experiments and simulations.},
  author = {M Chaouche and N Rakotomalala and D Salin and B Xu and YC Yortsos},
  year = {1994},
  doi = {10.1103/physreve.49.4133},
  url = {https://pubmed.ncbi.nlm.nih.gov/9961702/},
  note = {Source identifier: 9961702}
}