Contract document reference definition

I think the definition for this ASBIE is insufficient:

http://docs.oasis-open.org/ubl/csprd01-UBL-2.2/mod/summary/reports/All-UBL-2.2-Documents.html#t-UBL-TenderContract-2.2-18

ContractDocumentReference = "A reference to a set of minutes."

Please consider if there is a better definition. Is this item not a copy of or pointer to the contract document itself? Perhaps not, but as someone not knowing how the document is used, the definition feels misleading.