# 1:
%item = ( title => 'SomeTitle',
          link  => 'http://somelink' );
push (@items,\%item);
%rss = ( items => \@items );
$rss = \%rss;

#2:
$rss = { 
         items => [
                    { 
                      title => 'SomeTitle',
                      link  => 'http://somelink'
                    }
                  ]
       };