AUTONOMOUS ROBOTS, vol. 21, no. 2, page. 143 - 154, 2006-09
OCEAN ENGINEERING, vol. 33, no. 5-6, page. 566 - 586, 2006-04
ADVANCED ROBOTICS, vol. 20, no. 4, page. 453 - 481, 2006-01
ADVANCED ROBOTICS, vol. 20, no. 5, page. 581 - 593, 2006-01
INTELLIGENT AUTOMATION AND SOFT COMPUTING, vol. 12, no. 4, page. 397 - 410, 2006-01
ISIJ INTERNATIONAL, vol. 46, no. 10, page. 1442 - 1451, 2006-01