@misc{indiciae8f69544c6ec8,
  title = {Water resources of the Lake Superior Watershed, northeastern Minnesota},
  author = {P. G. Olcott and P.E. Felsheim and D.W. Ericson and W.L. Broussard},
  year = {1976},
  doi = {10.3133/ofr76276},
  url = {https://pubs.usgs.gov/publication/ofr76276},
  note = {Source identifier: ofr76276}
}