<ul><li><a href=https://www.bundesnetzagentur.de/SharedDocs/Downloads/EN/BNetzA/PressSection/ReportsPublications/2023/AR2022.pdf?__blob=publicationFile&v=1 target=_blank>Bundesnetzagentur, Analysis of market 2(Bundesnetzagentur, Analysis of market 2, termination in mobile networks)</a></li></ul>