Parker, DB "Solving design problems in graphical dialogue" pp179-219

Karplus, W. J. ed. (1967) Karplus, W. J. ed. "On-Line Computing", McGraw-Hill, New York, 1967  

Languages mentioned AED-0 {1964} Enhanced AED for graphics CORAL {1964} Class Oriented Ring Associated Language DAC-I {1966} GM Design system DIALOG {1966} Interactive math using graphics tablet Sketchpad {1962} Interactive graphics environment