@misc{indiciae524cbf295eb1,
  title = {A four-channel multiplexer for the point plotter (Houston Instruments Model 6550).},
  author = {H Bakema and W J van Loenen and P van Urk},
  year = {1974},
  doi = {10.1007/bf02477802},
  url = {https://pubmed.ncbi.nlm.nih.gov/4466988/},
  note = {Source identifier: 4466988}
}