Interval Research Corp., Palo Alto, TR IRC # 1999-071 (in preparation), 1999.]]
S. S. Snibbe, R. Shaw, K. E. MacLean, J. B. Roderick, K. Johnson, O. Bayley, and W. L. Verplank, 'l-Iaptic Metaphors for Digital Media," Interval Research Corp., Palo Alto, TR IRC # 1999-071 (in preparation), 1999.]]
1999