@Article{SCI:Hen85a,
  author =    "T.C. Henderson and C.D. Hansen and W.S. Fai",
  title =     "Organizing Spatial Data for Robotics Systems",
  journal =   "Computers in Industry",
  volume =    "6",
  number =    "5",
  pages =     "331--344",
  year =      "1985",
  month =     "October",
}