code: @Override
      public BELDocumentHeader convert(Header h) {
          String name = h.getName();
          String author = join(h.getAuthors());
          String copyright = h.getCopyright();
          String contactInfo = h.getContactInfo();
          String description = h.getDescription();
          String disclaimer = h.getDisclaimer();
          String license = join(h.getLicenses());
          String version = h.getVersion();
  
          return new BELDocumentHeader(name, description, version, author,
                  copyright,
                  contactInfo,
                  disclaimer, license);
      }
docs: {@inheritDoc}