David Fox

An Alternative Approach to the Computer Interface

K. Perlin, David Fox, 1993 .

Pad: an alternative approach to the computer interface

Ken Perlin, David Fox, K. Perlin, 1993, SIGGRAPH.

The RightPages image-based electronic library for alerting and browsing

Lawrence O'Gorman, H. V. Jagadish, Guy A. Story, 1992, Computer.