NISO STS 1.1d1 Tag Suite Components—Including TBX-TML
Tag Library describing ANSI/NISO Z39.102-20xx, STS: Standards Tag Suite (Version 1.1d1)
<issue-part>Issue Part (in a citation)
Within a citation (such as a <mixed-citation> or an <element-citation>), used for the case when a publisher splits a journal issue into two or more separately
bound or separately issued parts. This element holds the identifiers (titles, part
numbers, etc.) for those publishing components.