1. Dick W.P. Ruiter, Institutional Legal Facts, Legal Powers and their Effects (Dordrecht: Kluwer Academic Publishers, 1993).
2. John R. Searle, Speech Acts. An Essay in the Philosophy of Language (Cambridge: Cambridge UP, 1969).
3. John R. Searle, Expression and Meaning. Studies in the Theory of Speech Acts. (Cambridge: Cambridge UP 1979).
4. John R. Searle and Daniel Vanderveken, Foundations of lllocutionary Logic (Cambridge: Cambridge UP, 1985).
5. See more recently: John R. Searle, The Construction of Social Reality (Har-mondsworth: Allan Lane, and New York: Free Press, 1995).