The Transactions of The Institute of Electrical Engineers of Japan, vol. 118, no. 9, page. 420 - 424, 1998-09
ROBOTICA, vol. 14, page. 499 - 506, 1996-09
SENSORS AND ACTUATORS A-PHYSICAL, vol. 56, no. 1-2, page. 113 - 121, 1996-08
AN INTERNATIONAL JOURNAL ON SENSOR TECHNOLOGY SENSORS AND MATERIALS, vol. 4, no. 5, page. 277 - 289, 1993-01