@CONFERENCE{WTJ:dasc09,
  author = {Watts, R. Tsiotras, P. and Johnson, E.},
  title = {Pilot Feedback for an Automated Planning Aid System in the Cockpit},
  booktitle = {28th Digital Avionics Systems Conference},
  year = {Oct.~25--29, 2009},
  address = {Orlando, FL},
}