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Loet Leydesdorff ist Soziologe in Amsterdam. Er macht Kommunikationstheorie im Umfeld der Luhmann-Schule. Loet Leydesdorff im Netz L. partizipiert die Luhmann-Liste

---------- Notiz ---------------- Spencer Brown, G. (1993/94), "Self-reference, Distinctions and Time", Teoria Sociologica, Vol 2-3 No 1, pp. 47-53. Varela, F. (1975), "A Calculus for Self-Reference", International Journal of General Systems, Vol 2 No 1, pp. 5-24. Varela, F. J. & J. A. Goguen (1978), "The Arithmetic of Closure", Journal of Cybernetics Vol 8, pp. 291-324. The relevant references are provided and placed in context in: The Biological Metaphor of a (Second-order) Observer and the Sociological Discourse, Kybernetes 35 (3/4) (2006), 531-546. [Preprint version available from my website.] Best, Loet -----------------------------