@article{KuehlingGzikSchneideretal.2003,
  author    = {Matthias K{\"u}hling and Axel Gzik and Ingo Schneider and Bernd Tschochner},
  title     = {Heavy metal contamination of soils in a mining area in South Africa and its impact on some biotic systems},
  year      = {2003},
}