@misc{indiciae8ea15ebdf792,
  title = {Determining baseline element composition of lichens. I. Parmelia sulcata at Theodore Roosevelt National Park, North Dakota},
  author = {L. P. Gough and R. C. Severson and L. L. Jackson},
  year = {1988},
  doi = {10.1007/bf00279594},
  url = {https://pubs.usgs.gov/publication/70014864},
  note = {Source identifier: 70014864}
}