From Compliance Risk to Business Model - Cloud Sovereignty as a Door Opener for the EU Market. In Dimitri Petrik, Andrey Saltan, und Andreas Helferich (Hrsg.), Digital Product Management in the Era of Data Economy, Artificial Intelligence, and Ecosystems, 91--97, Springer Nature Switzerland, Cham, 2025. [PUMA: CloudComputing DigitalSovereignty GDPR USCloudAct]