Constraint-Based Hypertext for Argumentation. - Paul Smolensky; Brigham Bell; Barbara A. Fox; Roger King; Clayton H. Lewis (Hypertext, 1987)

Usability testing of a graphical programming system: things we missed in a programming walkthrough. - Brigham Bell; John Rieman; Clayton H. Lewis (CHI, 1991)

Problem-Centered Design for Expressiveness and Facility in a Graphical Programming System. - Clayton H. Lewis; John Rieman; Brigham Bell (Hum. Comput. Interact., 1991)

Simulation of Communications Protocols throght Graphical Transformation Rules. - Brigham Bell; Wayne Citrin (Advanced Visual Interfaces, 1992)

Addressing the psychology of programming in programming language design. - Brigham Bell; Wayne Citrin; Clayton H. Lewis; John Rieman; Robert P. Weaver; Nick Wilde; Benjamin G. Zorn (PPIG (1), 1992)

ChemTrains: A Language for Creating Behaving Pictures. - Brigham Bell; Clayton H. Lewis (VL, 1993)

Using the Programming Walkthrough to Aid in Programming Language Design. - Brigham Bell; Wayne Citrin; Clayton H. Lewis; John Rieman; Robert P. Weaver; Nick Wilde; Benjamin G. Zorn (Softw. Pract. Exp., 1994)