https://pubs.er.usgs.gov/publication/ofr03247
https://pubs.er.usgs.gov/publication/ha373
https://pubs.er.usgs.gov/publication/ofr96372
https://pubs.er.usgs.gov/publication/ha250
https://pubs.er.usgs.gov/publication/ofr96379
https://pubs.er.usgs.gov/publication/ha450
https://pubs.er.usgs.gov/publication/ofr96371