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2. Blackburn, Simon (1984). Spreading the Word, Oxford University Press.
3. Carnap, Rudolf (1931). Überwindung der Metaphysik durch logische Analyse der Sprache Erkenntnis, Bd. 2, Springer.
4. Dworkin, Ronald (1977). Taking Rights Seriously, Harvard University Press.
5. Dworkin, Ronald (1986). Law’s Empire, Harvard University Press.