Automated assessment and experiences of teaching programming. - Colin A. Higgins; Geoffrey Richard Gray; Pavlos Symeonidis; Athanasios Tsintsifas (ACM J. Educ. Resour. Comput., 2005)

An introspective approach to marking graphical user interfaces. - Geoffrey Richard Gray; Colin A. Higgins (ITiCSE, 2006)

An automated marking system for graphical user interfaces. - Geoffrey Richard Gray (2008)