Deepak Bapna Eric Rollins John Murphy Mark W. Maimone William Whittaker David Wettergreen The Atacama Desert Trek: Outcomes. 597-604 1998 conf/icra/1998 ICRA db/conf/icra/icra1998-1.html#BapnaRMMWW98 http://dx.doi.org/10.1109/ROBOT.1998.677038