Then I followed your second link to the draft 1.3, i.e. to
https://www.oasis-open.org/committees/documents.php?wg_abbrev=office. This one
shows me a table of 10 documents. They contain links to some
OpenDocument-v1.3-*part*.odt, but the part numbers go beyond the range 1...3
and the low numbers are missing. Is there something similar to the ZIP-file
OpenDocument-v1.2-os.zip (of course, the version 1.3 and perhaps draft and the
date or a subversion number in it)?