e-Commerce report 2023 [documento eletrónico] / Correios de Portugal
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
e-Commerce report 2022 [documento eletrónico] / Correios de Portugal
ERGP report on the future needs of the USO [documento eletrónico] / European Regulators Group for Postal Services
Main developments in the postal sector (2017-2021) [documento eletrónico] / Mindaugas Cerpickis...[et al.]