/** @see org.olat.course.nodes.CourseNode#getReferencedRepositoryEntry() */
 @Override
 public RepositoryEntry getReferencedRepositoryEntry() {
   // "false" because we do not want to be strict, but just indicate whether
   // the reference still exists or not
   final RepositoryEntry entry =
       WikiEditController.getWikiReference(getModuleConfiguration(), false);
   return entry;
 }
 /**
  * @see org.olat.course.nodes.GenericCourseNode#exportNode(java.io.File, org.olat.course.ICourse)
  */
 @Override
 public void exportNode(final File exportDirectory, final ICourse course) {
   final RepositoryEntry re = WikiEditController.getWikiReference(getModuleConfiguration(), false);
   if (re == null) {
     return;
   }
   final File fExportDirectory = new File(exportDirectory, getIdent());
   fExportDirectory.mkdirs();
   final RepositoryEntryImportExport reie = new RepositoryEntryImportExport(re, fExportDirectory);
   reie.exportDoExport();
 }