@article{'BosOka2007ALR',
   title     = {'A spoken language interface with a mobile robot'},
   author    = {Bos, Johan and 'Oka', 'Tetsushi'},
   journal   = {'Artificial Life and Robotics'},
   volume    = {11},
   number    = {1},
   pages     = {42--47},
   year      = {2007}
}