@misc{indiciaea071327a0ef7,
  title = {Analog and digital computer theory.},
  author = {F E Block},
  year = {1987},
  doi = {10.1007/bf02919574},
  url = {https://pubmed.ncbi.nlm.nih.gov/3572195/},
  note = {Source identifier: 3572195}
}