1. Health informatics - The Patient Summary for Unscheduled, Cross- border Care;European Committee for Standardization,2019
2. Health informatics - The International Patient Summary: Guidance for European Implementation;European Committee for Standardization,2019
3. GDPR, “General Data Protection Regulation – Official Legal Text”, URL: https://gdpr-info.eu
4. ISO/IEC 25012 “Software and Data Quality”, URL: https://iso25000.com/index.php/en/iso-25000-standards/iso-25012
5. Extracting Data from General Practitioners' XML Reports in Bulgarian Healthcare to Comply with ISO/EN 13606;Kaloyanova,2019