Citation Issue (R) oaire:citationIssue Cardinality Recommended Occurrence: 0-1 Definition and Usage Instruction The issue of the container (e.g. journal). This property is considered to be part of the bibliographic citation. Property citationIssue (R, 0-1) Use the issue number as value. Example <oaire:citationIssue>1</oaire:citationIssue>