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Responsible for content
Kai Froeb
2460-697 São Martinho do Porto
Portugal
Email: info @ hegel.net
Web: kai.froeb.net
Information pursuant to Article 10 of Portuguese Decreto-Lei 7/2004, implementing Directive 2000/31/EC on electronic commerce.
These pages are operated free of charge. Nothing is sold here, there is no advertising and there are no user accounts.
Further information
What you may do with the contents, who wrote them and how liability is handled is set out in the terms of use.
How personal data is handled is set out in the privacy notice.
How to use these pages and who contributed to them is explained on the info page.
Version of August 2026.