Interoperability regulations for digital services [documento eletrónico] : impact on competition, innovation and digital sovereignty especially for platform and communication services / Lukas Wiewiorra...[et al.]
Portugal telecommunications report [documento eletrónico] : includes 10-year forecasts to 2031 / Fitch Solutions
Interoperability in digital markets [documento eletrónico] / Marc Bourreau, Jan Krämer and Miriam Buiten