@article{DBLP:journals/ctw/HenriqsonWSD11,
  author    = {Eder Henriqson and
               Roel van Winsen and
               Tarcisio Abreu Saurin and
               Sidney W. A. Dekker},
  title     = {How a cockpit calculates its speeds and why errors while
               doing this are so hard to detect},
  journal   = {Cognition, Technology {\&} Work},
  volume    = {13},
  number    = {4},
  year      = {2011},
  pages     = {217-231},
  ee        = {http://dx.doi.org/10.1007/s10111-010-0161-4},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}