1. Albech, U.: Dansk Stilistik. Copenhagen: Gyldendal 1973
2. Bøgh, P. A.: Semiotics and informatics: Computers as media. In: Information, technology, and information use. (Ingwersen et al. eds). London: Taylor Graham 1986
3. Ehn, P.: Work-oriented design of computer artifacts. Stockholm: Arbetslivscentrum 1988
4. Lakoff, G., and Johnson, M.: Metaphors we live by. Chicago: University of Chicago Press 1980
5. Searle, J. R.: Expressions and meaning: Studies in the theory of speech acts. Cambridge: Cambridge University Press 1979