AENOR

Electronic Invoicing for public outsourcing

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UNE-EN 16931-1:2019

UNE-EN 16931-1:2019

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Electronic invoicing - Part 1: Semantic data model of the core elements of an electronic invoice

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UNE-CEN/TS 16931-2:2019 (R2020)

UNE-CEN/TS 16931-2:2019 (R2020)

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Electronic invoicing - Part 2: List of syntaxes that comply with EN 16931-1

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UNE-EN 16931-1:2019+A1:2020

UNE-EN 16931-1:2019+A1:2020

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Electronic invoicing - Part 1: Semantic data model of the core elements of an electronic invoice

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