@misc{indiciae075d13227932,
  title = {Baseline element concentrations in soils and plants, Wattenmeer National Park, North and East Frisian Islands, Federal Republic of Germany},
  author = {R. C. Severson and L. P. Gough and G. van den Boom},
  year = {1992},
  doi = {10.1007/bf00478372},
  url = {https://pubs.usgs.gov/publication/70016555},
  note = {Source identifier: 70016555}
}