Buxton, William. (1982, May). An Informal Study of

Selection-Positioning Tasks. Proc. of Graphics

Interface, '82, Toronto, pp. 323-345.

Buxton, William. (1983, January). Lexical and Pragmatic

Considerations of Input Structures. Computer

Graphics, 17(1), pp. 31-37.

Buxton, William. (1986, September). Chunking and

Phrasing and the Design of Human-Computer

Dialogues. Proceedings of the IFIP World Computer

Congress, Dublin, Ireland.

Callahan, Jack, Hopkins, Don, Weiser, Mark, &

Shneiderman, Ben. (May 1988). A Comparitive

Analysis of Pie Menu Performance. Proc. CHI'88

conference, Washington D.C.: available from ACM,

NY.

Card, S. K., Moran, T. P., & Newell, A. (1983). The

Psychology of Human-Computer Interaction, Lawrence

Erlbaum, London, 1983.

Densmore, M. Owen (November, 1986), Object-Oriented

Programming in NeWS, in proc. Third Monterey

Graphics Workshop, USENIX, Nov 20-21, 1986.

Foley, J. D., & Wallace, Victor L. (1974, April). The

Art of Natural Graphic Man-Machine Communication.

Proceedings IEEE, 62(4), pp. 462-471.

Foley, J. D., & Van Dam, A. (1982). Fundamentals of

Interactive Computer Graphics. Reading, MA:

Addison-Wesley.

Gosling, James. (1985). SunDew - A Distributed and

Extensible Window System In Hopgood, Duce,

Fielding, Robinson, Williams (Ed.), Methodology of

Window Managment, Proceedings of an Alvey Workshop,

Abingdon UK: Springer-Verlag, pp. 47-57.

Hopkins, Don. (1987, September). Directional Selection

is Easy as Pie Menus! [Summary of Work-in-Progress

talk at Phoenix Usenix Conference.] Published in

;login: The USENIX Association Newsletter, 12(5),

pp. 31-32.

Hopkins, Don, Callahan, Jack, & Weiser, Mark. (1987).

Pies: Implementation, Evaluation, and Application

of Circular Menus. (Paper in preparation. Draft

available from authors.)

Shneiderman, B. (1987). Designing the User Interface:

Strategies for Effective Human-Computer

Interaction. Addison-Wesley.