@misc{indiciae387a6e0e914d,
  title = {Special issue on geostatistical and spatiometrical modeling of coal resources},
  author = {Ricardo A. Olea},
  year = {2013},
  doi = {10.1016/j.coal.2013.01.010},
  url = {https://pubs.usgs.gov/publication/70044282},
  note = {Source identifier: 70044282}
}