Boldron, François, Cremer, Helmuth, Roy, Bernard and De Villemeur, Étienne (2006) Nonlinear Pricing and Worksharing in the Postal Sector. In: Liberalization of the Postal and Delivery Sector Crew, Michael A. and Kleindorfer, Paul R. (eds.) Edward Elgar Publishing. Chapter 9.

Cremer, Helmuth, De Donder, Philippe, Dudley, Paul and Rodriguez, Frank (2006) A Welfare Analysis of Price Controls with End-to-End Mail and Access Services. In: Liberalization of the Postal and Delivery Sector Crew, Michael A. and Kleindorfer, Paul R. (eds.) Edward Elgar Publishing. pp. 53-72.

Fève, Frédérique (2006) Microeconomic Demand Modelling for Price Elasticities. In: Liberalization of the Postal and Delivery Sector Crew, Michael A. and Kleindorfer, Paul R. (eds.) Edward Elgar Publishing.