1. M. De Mey, 'The relevance of the cognitive paradigm for information science. Theory and application of information research,' Proceedings of the SIRE 2 conference, 1977, Copenhagen. ed. by Ole Harbo and Leif Kajberg. London,Mansell, 1980, pp.48-61.
2. B.C. Brookes, 'The developing cognitive viewpoint in information science,' International Workshop on the Cognitive Viewpoint, 1977, ed. by Marc De Mey.University of Ghent, 1977. pp.195-203.
3. D.M. Mackey, 'What makes a question,' The Listener, 63, 5May 1960, pp.789-790.