Data Item _citation.year
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General 
- Item name
- _citation.year
- Category name
- citation
- Attribute name
- year
- Required in PDB entries
- no
- Used in current PDB entries
- Yes, in about 85.1 % of entries
Item Description
The year of the citation; relevant for journal articles, books
and book chapters.
Additional Descriptive Information for Depositors
The year of publication of the article. Example: 2002
Item Example
1984
Data Type 
- Data type code
- int
- Data type detail
- int item types are the subset of numbers that are the negative or positive integers.
- Primitive data type code
- numb
- Regular expression
- [+-]?[0-9]+
Aliases
| Alias Item Name | Dictionary Name | Dictionary Version |
|---|---|---|
| _citation_year | cif_core.dic | 2.0.1 |