1. MacKenzie, C.L and Iberall, T. (1994) The grasping hand, Elsevier Science Publishers, Amsterdam.
2. Johansson, R.S., Riso, R., Hager, C. and Bäckström, L. (1992) Somatosensory control of precision grip during unpredictable pulling loads. I. Changes in load force amplitude, Experimental Brain Research 89, 181–191.
3. Johansson, R.S. and Westling, G. (1984) Roles of glabrous skin receptors and sensorimotor memory in automatic control of precision grip when lifting rougher or more slippery objects, Experimental Brain Research 56, 550–564.
4. Westling, G. and Johansson, R.S. (1984) Factors influencing the force control during precision grip, Experimental Brain Research 53, 277–284.
5. Johansson, R.S. and Westling, G. (1988) Coordinated isometric muscle commands adequately and erroneously programmed for the weight during lifting task with precision grip, Experimental Brain Research 71, 59–71.