@incollection{2021:becker:interopera, title = {Interoperability of Messenger Services. Possibilities for a Consumer-Friendly Approach}, year = {2021}, note = {}, booktitle = {Perspectives on Platform Regulation}, pages = {119--144}, edition = {1}, author = {Becker, Jörg and Holznagel, Bernd and Müller, Kilian}, publisher = {Nomos}, address = {Baden-Baden}, series = {Recht und Digitalisierung | Digitization and the Law}, volume = {1} }