Cremer, Helmuth, Florens, Jean-Pierre, Grimaud, André, Marcy, Sarah, Roy, Bernard and Toledano, Joëlle (2004) Entrée et concurrence sur le marché postal, Méthodologie pour la construction de scénarios d'entrée. In : Economie Postale : les Fondements Toledano, Joëlle (ed.) Economica. pp. 263-280.

Florens, Jean-Pierre, Marcy, Sarah and Toledano, Joëlle (2004) La demande de courrier à court et long terme. In : Economie Postale : les Fondements Toledano, Joëlle (ed.) Economica. pp. 50-71.

Florens, Jean-Pierre, Marcy, Sarah and Toledano, Joëlle (2002) Mail Demand in the Long and Short Term. In: Postal and Delivery Services: Pricing, Productivity, Regulation and Strategy Springer. Series “Topics in Regulatory Economics and Policy”, Vol. 41. Chapter 10. pp. 171-190. ISBN 0-7923-7638-2

Cremer, Helmuth, Florens, Jean-Pierre, Grimaud, André, Marcy, Sarah, Roy, Bernard and Toledano, Joëlle (2001) Entry and Competition in the Postal Market: Fondations for the Construction of Entry Scenarios. Journal of Regulatory Economics, 19 (2). pp. 107-121.

Florens, Jean-Pierre, Marcy, Sarah and De Rycke, Marc (2001) Mail Use by Firms. In: Future Direction in Postal Reform Springer. Series “Topics in Regulatory Economics and Policy” pp. 213-232. ISBN 978-0-7923-7274-5