1Km autonomous robot navigation on outdoor pedestrian paths "running the Tsukuba challenge 2007". - Yoichi Morales Saiki; Eijiro Takeuchi; Alexander Carballo; Wataru Tokunaga; Hiroyasu Kuniyoshi; Atsushi Aburadani; Atsushi Hirosawa; Yoshisada Nagasaka; Yusuke Suzuki; Takashi Tsubouchi (IROS, 2008)