xmlns:atom="http://www.w3.org/2005/Atom" xmlns:atom="http://www.w3.org/2005/Atom"
The authenticity of the origin and the integrity of the content of the invoices stored, as well as their legibility, must be guaranteed throughout the storage period.
In respect of the invoices referred to in the second subparagraph of Article 233(1), the details they contain may not be altered and must remain legible throughout the storage period.