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- Stigler, George J & Friedland, Claire, 1975. "The Citation Practices of Doctorates in Economics," Journal of Political Economy, University of Chicago Press, vol. 83(3), pages 477-507, June.
- David N. Laband & Robert D. Tollison, 2000. "Intellectual Collaboration," Journal of Political Economy, University of Chicago Press, vol. 108(3), pages 632-661, June.
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