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Cremer, Helmuth, De Donder, Philippe, Dudley, Paul and Rodriguez, Frank (2012) Optimal Pricing of Mail in the Transactional Market and Welfare for the Wider Communications Market. In: Multi-Modal Competition and the Future of Mail Edward Elgar Publishing. ISBN 978 0 85793 581 6

Cazals, Catherine, Dudley, Paul, Florens, Jean-Pierre and Jones, Michael (2012) A panel data analysis of inefficiency and heterogeneity in the postal sector. In: Multi-Modal Competition and the Future of Mail Crew, Michael A. and Kleindorfer, Paul R. (eds.) Michael A. Crew and Paul R. Kleindorfer. Chapter 8. pp. 109-123. ISBN 9780857935816

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