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so provide a descriptive name for the reverse link. (True bi-directional links would require two separate entries in the links.) Also, add the dependent document link, using the reserved negative number range. git-svn-id: https://kt-dms.svn.sourceforge.net/svnroot/kt-dms/trunk@3397 c91229c3-7414-0410-bfa2-8a42b809f60b
