1. Myles, K.P., Binseel, M.S.: Exploring tactile modality for HMDs. ARL technical Report Army Research Laboratory, Aberdeen Proving Ground, MD, 849–876 (2007)
2. Hoggan, E., Brewster, S.: New parameters for tacton design. In: Proceedings of the SIGCHI 07 Conference on Human Factors in Computing Systems, pp. 2417–2422. ACM, San Jose, (2007)
3. Wickermaratchi, M.M., Llewelyn, J.G.: Effects of ageing on touch. Postgrad. Med. J. 82, 301–304 (2006)
4. Stuart, M., Turman, B.A., Shaw, J., Walsh, N., Nguyen, V.: Effects of aging on vibration detection thresholds at various body regions. BMC Geriatrics 3(1), 1–10 (2003)
5. Goble, A.K., Collins, A.A., Cholewiak, W.: Vibrotactile threshold in young and old observers: the effects of spatial summation and the presence of a rigid surround. J. Acoust. Soc. Am. 99(4), 2256–2269 (1996)