![[CIF logo]](https://www.iucr.org/__data/assets/image/0003/125499/CIF_v2.5.jpg)
Macromolecular dictionary (mmCIF) version 2.0.09
Category VALENCE_REF
Name:'valence_ref'
Description:
Data items in the VALENCE_REF category list the references from which the bond-valence parameters have been taken.Category key:
_valence_ref.id
Mandatory category: no