@misc{indiciae872012c775ee,
  title = {[Multiple component systems. A new method of operation for electronic calculation systems].},
  author = {M Paul and W Urich},
  year = {1966},
  doi = {10.1007/bf00631191},
  url = {https://pubmed.ncbi.nlm.nih.gov/5988677/},
  note = {Source identifier: 5988677}
}