@misc{indiciaed17e6f0fc90c,
  title = {[A selective, need-oriented prevention program for primary schoolchildren - results after two years].},
  author = {K Pieper and G Hüttmann and W Evers and F Gehring},
  year = {1989},
  url = {https://pubmed.ncbi.nlm.nih.gov/2598871/},
  note = {Source identifier: 2598871}
}