Postal aspects of e-commerce [documento eletrónico] / Antonia Niederprüm, Colum Joyce, Sonja Thiele
ERGP report on the future needs of the USO [documento eletrónico] / European Regulators Group for Postal Services
ERGP report on the application of the cross-border parcel regulation [documento eletrónico] / European Regulators Group for Postal Services
ERGP report on exploring the sustainability of the USO [documento eletrónico] / European Regulators Group for Postal Services
2023 European e-commerce report [documento eletrónico] / Sara Lone, Jesse Weltevreden, Aishwarya Luharuwala
State of the postal sector 2023 [documento eletrónico] : a hyper-collaborative path to postal development / Universal Postal Union
Relatório Integrado 2023 [documento eletrónico] : CTT entregar o futuro ligando pessoas e empresas de forma sustentável / Correios de Portugal
e-Commerce report 2023 [documento eletrónico] / Correios de Portugal
Statistique des services postaux 2022 [documento eletrónico] / Union Postale Universelle
Informe anual integrado 2022 [documento electrónico] / Sociedad Estatal Correos y Telégrafos, S.A., S.M.E.