@misc{indiciae09caea86764a,
  title = {[General tactical and technical principles].},
  author = {F Kümmerle},
  year = {1982},
  doi = {10.1007/bf01271757},
  url = {https://pubmed.ncbi.nlm.nih.gov/7169899/},
  note = {Source identifier: 7169899}
}