@article{Eagle-2005-reality-mining,
  doi = {10.1007/s00779-005-0046-3},
  url = {https://doi.org/10.1007/s00779-005-0046-3},
  year  = {2005},
  month = {nov},
  publisher = {Springer Nature},
  volume = {10},
  number = {4},
  pages = {255--268},
  author = {Nathan Eagle and Alex (Sandy) Pentland},
  title = {Reality mining: sensing complex social systems},
  journal = {Personal and Ubiquitous Computing}
}