@article{palm1996lead,
  title = {Lead and zinc flows from technosphere to biosphere in a city region}
  author = {Palm, Viveka; Östlund, Catarina},
  journal = {Science of The Total Environment},
  url = {http://www.sciencedirect.com/science/article/pii/0048969796053016},
  doi = {10.1016/0048-9697(96)05301-6},
  year = {1996}
}