@misc{indiciaefcac0a3729be,
  title = {The Tom and Tim machine.},
  author = {N Pfanner and M Meijer},
  year = {1997},
  doi = {10.1016/s0960-9822(06)00048-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/9081657/},
  note = {Source identifier: 9081657}
}