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2. McKenzie, L. Matrices with Dominant Diagonals and Economic Theory. Chapter 4 in Arrow, Karlin, and Suppes, ibid., pp. 47-62.
3. Morgenstern, O. (ed.): Economic Activity Aanlysis. New York: Wiley, 1954.
4. Quine, W. van O.: Mathematical Logic. Revised Edition. Cambridge, Mass.: Harvard, 1965.