@misc{indiciaec18d55f8aebb,
  title = {Assessing directional effects in spatial data.},
  author = {N L Oden},
  year = {1993},
  doi = {10.1002/sim.4780121907},
  url = {https://pubmed.ncbi.nlm.nih.gov/8272661/},
  note = {Source identifier: 8272661}
}