@misc{indiciaeffaec9f79459,
  title = {[Working method of the Hannover program].},
  author = {H Abel and C Zywietz and W Schiemann and W Alraun},
  year = {1976},
  url = {https://pubmed.ncbi.nlm.nih.gov/960982/},
  note = {Source identifier: 960982}
}