@misc{indiciaee3bc8bb4701c,
  title = {Comment on "Sigma: Issues, insights, and challenges" by F. O. Strasser, N. A. Abrahamson J. J. Bommer},
  author = {Z. Wang},
  year = {2009},
  doi = {10.1785/gssrl.80.3.491},
  url = {https://pubs.usgs.gov/publication/70034474},
  note = {Source identifier: 70034474}
}