@misc{indiciae69546b51572f,
  title = {Robust and resistant semivariogram modelling using a generalized bootstrap},
  author = {Ricardo A. Olea and E. Pardo-Iguzquiza and P. A. Dowd},
  year = {2015},
  url = {https://pubs.usgs.gov/publication/70199526},
  note = {Source identifier: 70199526}
}