C. Heinbach, J. Gessler, H. Rychlik, C. Stecenko, H. Wieker, and W. H. Schulz, “Sharing Business Data Securely: Insights from the European Gaia-X Project on Technical and Economic Roles Enabling Federated Data Spaces”, JTDE, vol. 12, no. 4, pp. 66–84, Dec. 2024.