@misc{indiciae32d79e1ec610,
  title = {[1998 environment survey--initial results].},
  author = {C Schulz and K Becker and D Helm and C Krause},
  year = {1999},
  url = {https://pubmed.ncbi.nlm.nih.gov/10726423/},
  note = {Source identifier: 10726423}
}