Cremer, Helmuth, De Donder, Philippe and Rodriguez, Frank (2003) Access Pricing and Parcels Delivery. In: Postal and Delivery Services: Delivering on Competition Crew, Michael A. and Kleindorfer, Paul R. (eds.) Springer US. Series “Topics in Regulatory Economics and Policy”, Vol. 44. pp. 49-69. ISBN 978-1-4615-0233-3

Cazals, Catherine and Florens, Jean-Pierre (2003) Econometrics of Mail Demand: A Comparison between Cross-Section and Dynamic Data. In: Postal and Delivery Services: Delivering on Competition Springer. Series “Topics in Regulatory Economics and Policy”, Vol. 44. pp. 119-140. ISBN 978-1-4020-7035-8

Cremer, Helmuth, Roy, Bernard, Toledano, Joëlle and de Villemeur, Étienne (2002) Pricing and Worksharing Discounts in the Postal Sector. In: Postal and Delivery Services: Delivering on Competition Crew, Michael A. and Kleindorfer, Paul R. (eds.) Springer. Series “Topics in Regulatory Economics and Policy”, Vol. 44. pp. 33-48. ISBN 978-1-4615-0233-3