parent child obsoletes updates complements derivedFrom adoptedFrom equivalent identical nonequivalent ISO-639 ISO-15924: Latn normative informative identical modified left right center justified left right center left right center warning note tip important caution external inline footnote callout SVG JPEG GIF PNG PDF MathML AsciiMath roman alphabet arabic roman_upper alphabet_upper text/plain text/html application/docbook+xml application/tei+xml text/x-asciidoc text/markdown application/x-isodoc+xml author edition publisher isni uri orcid uri section clause part paragraph chapter page whole table annex figure note example article book booklet conference manual proceedings presentation thesis techreport standard unpublished published accessed created activated obsoleted