* Neuman & Sproul
	p. 224, Hiles 1969
	1st and 2nd editions

* SunDew - A Distributed and Extensible Window System
	James Gosling
	Methodology of Window Managment
	Hopgood, Duce, Fielding, Robinson, Williams; editors
	Springer-Verlag, 1985
	Proceedings of an Alvey Workshop at Cosener's House
	Abingdon UK, April 1985

* The Detailed Semantics of Graphics Input Devices
	David S. H. Rosenthal, James C. Michener, Gunther Pfaff, 
	Rens Kessener, Malcolm Sabin
	Computer Graphics, Volume 16, Number 3, July 1982, page 33.

* Tools for Constructing User Interfaces
	Computer Aided Design, 12, 5 (Sept 1980) 
	223-227

* On Being Creative with Computer Aided Design
	Nicholus Negroponte
	Information Processing '77
	B. Gilchrist, editor
	IFIP, North-Holland Pub. Co. NY 1977

* The Use of a Kinesthetic Supplement in an Interactive Graphics System
	P. J. Kirkpatrick
	PhD dissertation
	U of North Carolina, Chapel Hill, NC, 1976

* The Computer "Scientist" as Toolsmith: Studies in Interactive 
  Computer Graphics
	F. P. Brooks, Jr.
	Proc. IFIP 1977
	p. 625-634
	
* The Semantics of Graphic Input Devices
	V.L. Wallace
	Computer Graphics, 10 (Spring 1976)
	in SIGPLAN notices 11 (June 1976) p. 61-65 (joint issue)

* Conversatiuonal Ergonomics
	V.L. Wallace
	(Session Summary)
	Proc. of User-Oriented Design of Interactive Graphics Systems (1977)
	S. Treu, Editor
	p. 121-122

* Fast Computer Graphics Data Entry: A New Zero-Crossing Delay Technique
	J.A. Turner, G.J. Ritchie
	in Displays for Man-Machine Systems
	IEE Pub. No. 150 (1977)
	p. 24-27

* Interactive Computer Graphics
	J. van den Bos
	Informatie (Netherlands) 18 (Oct 1976)
	p. 557-563

* Definitions and Use of Higher-Level Graphics Input Tools
	J. van den Bos
	Computer Graphics 12 (Aug 1978)
	p. 38-42

* An Input System Designed to Aid Users of Interactive Graphics
	B. C. Levrat, J. Hards, C. Pelligrini, M. Wenger, R.M. Aiken
	ACM 78 Proceedings, Annual Conference (1978)
	p. 720-724

* Graphical Output and Input capabilities
	J. D. Foley
	(session summary) p. 119-120
	Proc. of User-Oriented Design of Interactive Graphics Systems (1977)
	S. Treu, Editor

* The Art of Natural Graphic Man-Machine Communication
	James D. Foley, Victor L. Wallace
	Proceedings of the IEEE, April 1984

* A Graphical Technique for Numerical Input
	W. M. Newman
	Computer Journal V11, May 1968
	p. 63-64

* Primciples of Interactive Computer Graphics
	W. M. Newman, R. F. Sproull
	(First and Second Edition)
	McGraw Hill, 1973

* The Semantics of Graphics Input Devices
	V. L. Wallace
	Computer Graphics 10 (1) (spring 1976)

* Display-Selection Techniques for Text Manipulation
	English, Englebard, and Berman
	IEEE Transactions on Human Factors
	HFE-8 1 (1967), 5

* Use of a Pragmatic Information Measure as an Aid in the Design of 
  Interactive Graphics Displays
	M. R. Corley
	Trans. ASME Ser. B (J. Eng. Ind.) 98 (1976)
	p. 434-439

* Planning Menus for Display: Some Effects of Their Structure and Content
  on User Performance 
	P. K. Barnard, J. Morton, J. B. Long, and E. A. Ottley
	Displays for Man-Machine Systems
	IEE Pub No. 150 (1977)
	p. 130-133

* The Number Wheel: A Tablet Based Valuator for Interactive 
	Three-Dimensional Positioning
	Robert W. Thornton
	Computer Graphics, Volume 13, Number 2, August 1979, page 102.

* One-Point Touch Input of Vector Information for Computer Displays
	Christopher F. Herot, Guy Weinzapfel
	Computer Graphics, Volume 12, Number 3, August 1978, page 210.

* Spatial Management of Information
	William Donelson
	SIGGRAPH '78, Proceedings of the Fifth Annual Conference on
	Computer Graphics and Interactive Techniques

* Making Nested Rotations Convenient for the User
	Edward G. Britton, James S. Lipscomb, Michael E. Pique
	Computer Graphics, Volume 12, Number 3, August 1978, page 222.

* Manipulating Simulated Objects with Real-World Gestures using a 
  Force and Position Sensitive Screen
	Margaret R. Minsky
	Computer Graphics, Volume 18, Number 3, July 1984, page 195.

* Turtle Geometry
	Abelson, Harold, and Andrea DiSessa
	MIT Press, 1981

* Mindstorms
	Seymour Papert
	Basic Books, NY, 1980

* Tablet-Based Valuators That Provide One, Two, or Three Degrees of Freedom
	Kenneth B. Evans, Peter P. Tanner, and Marceli Wein
	Computer Graphics, Volume 15, Number 3, August 1981, page 91.

* A Survey of Graphics Tablet Techniques.
	Tanner, P. P., Evans, K. B., Wein, M.
	In preparation, 1981.

* PIXIE: A New Approach to Graphical Man-Machine Communication
	Wiseman, N. E., Lenke, H. V., Hiles, J. O.
	Proceedings of the 1969 CAD Conference, 
	Southampton IEEE Confrence Publication 51, P. 463. 
	[Referenced in Principles of Interactive Computer Graphics]

* Lexical and Pragmatic Considerations of Input Systems
	William Buxton
	Computer Graphics, V17, #1, P. 31.

* A Survey of Research in Computer-Based Menus
	Darrell R. Raymond
	Data Structuring Group
	University of Waterloo
	Waterloo, Ontario, Canada
	N2L 3G1
	November 18, 1986