ACM - affordances
J. Potoczniak
M. Kosmin
R. Larkin
J. Callahan
R. M. Dunn
Proceedings of the 3rd annual conference on Computer graphics and interactive techniques - SIGGRAPH ’76
Economic Principles for Interactive Graphic Applications
Cost-Benefit Analysis of Computer Graphics Systems
Cost Benefit Evaluation of Scientific Computing Services
The Interactive Computer Network Graphics System
Affordability of Graphics Links to Planning Models in Program Offices
Capabilities, Costs, and Usefulness", Proceedings of SHARE XL, Denver, March 1973