IEEE TRANSACTIONS ON ROBOTICS AND AUTOMATION, vol. 20, no. 2, page. 269 - 282, 2004-04
JOURNAL OF SOUND AND VIBRATION, vol. 269, no. 3-5, page. 489 - 509, 2004-01-22
LECTURE NOTES IN CONTROL AND INFORMATION SCIENCES, vol. 307, page. 1 - +, 2004-01
LECTURE NOTES IN CONTROL AND INFORMATION SCIENCES, vol. 298, page. 3 - +, 2004-01
ADVANCED ROBOTICS, vol. 18, no. 6, page. 637 - 653, 2004-01