Quittio\Core\Data\References
quittio/core#
Quittio\Core\Data\References
DocumentReferenceReference to a related document on line level or as additional reference (profile EXTENDED), e.g. delivery note, order, contract or receiving advice.PrecedingInvoiceReferencePreceding invoice reference (BG-3), used for cancellations, corrections and final invoices.ProjectReferenceProject reference (BT-11). CII requires a name in addition to the identifier.