Task-Related Knowledge Structures: Analysis, Modelling and Application. - Peter Johnson 001; Hilary Johnson; Ray Waddington; Alan Shouls (BCS HCI, 1988)

Designing and Evaluating Interfaces Using Task Models. - Ray Waddington; Peter Johnson 001 (IFIP Congress, 1989)

Program Authorship: A Significant Factor in Debugging Performance? - Ray Waddington (PPIG, 1989)

User-centred design of software development environments : an example from program debugging. - Ray Waddington (1989)

Expert programmers re-establish intentions when debugging another programmer's program. - Ray Waddington; Roger Henry (INTERACT, 1990)

Interactive Contrete Models: Mapping from Code to Execution. - Ray Waddington (PPIG, 1991)