@misc{indiciaecb8028a1c218,
  title = {Water quality data at selected sites in the Mississippi Valley-type Zn-Pb ore district of upper Silesia, Poland, 1995-97},
  author = {Laurie Wirt and Jacek Motyka and David Leach and Maria Sass-Gustkiewicz and Marek Szuwarzynski and Zbigniew Adamczyk and Paul Briggs and Al Meiers},
  year = {2003},
  doi = {10.3133/ofr01283},
  url = {https://pubs.usgs.gov/publication/ofr01283},
  note = {Source identifier: ofr01283}
}