groups the agency-specific child elements of the publicationStmt element of the TEI header.TEI 헤더의 publicationStmt 요소 내에 나타날 수 있는 요소를 모아
놓는다.匯集元素publicationStmt的子元素TEIヘダーの要素publicationStmt内に出現する要素をまとめる．regroupe des éléments qui peuvent apparaître à
l'intérieur de l'élément publicationStmt de l'En-tête TEIagrupa los hijos de publicationStmt.raggruppa i figli di publicationStmt
A detail child element may not occur
unless an agency child element precedes
it.