This is the official manual for the latest Org-mode release.
DocBook exporter exports Org files as articles using the
element in DocBook. Recursive sections, i.e.,
section elements, are
used in exported articles. Top level headlines in Org files are exported as
top level sections, and lower level headlines are exported as nested
sections. The entire structure of Org files will be exported completely, no
matter how many nested levels of headlines there are.
Using recursive sections makes it easy to port and reuse exported DocBook
code in other DocBook document types like