diff --git a/modules/bibformat/lib/elements/bfe_meta.py b/modules/bibformat/lib/elements/bfe_meta.py
index b73c618f0..11e32618f 100644
--- a/modules/bibformat/lib/elements/bfe_meta.py
+++ b/modules/bibformat/lib/elements/bfe_meta.py
@@ -1,93 +1,109 @@
 # -*- coding: utf-8 -*-
 ##
 ## This file is part of CDS Invenio.
 ## Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 CERN.
 ##
 ## CDS Invenio is free software; you can redistribute it and/or
 ## modify it under the terms of the GNU General Public License as
 ## published by the Free Software Foundation; either version 2 of the
 ## License, or (at your option) any later version.
 ##
 ## CDS Invenio is distributed in the hope that it will be useful, but
 ## WITHOUT ANY WARRANTY; without even the implied warranty of
 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 ## General Public License for more details.
 ##
 ## You should have received a copy of the GNU General Public License
 ## along with CDS Invenio; if not, write to the Free Software Foundation, Inc.,
 ## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
 """BibFormat element -
 
 """
 __revision__ = "$Id$"
 
 from invenio.bibformat_utils import parse_tag
 from invenio.htmlutils import create_html_tag
 from invenio.bibindex_engine import get_field_tags
 
-def format_element(bfo, name, tag_name='', tag = '', respect_file_visiblity=False, escape=4):
+def format_element(bfo, name, tag_name='', tag = '', respect_file_visiblity=False, author_only=True, escape=4):
     """Prints a custom field in a way suitable to be used in HTML META
     tags.  In particular conforms to Google Scholar harvesting protocol as
     defined http://scholar.google.com/intl/en/scholar/inclusion.html
 
 
     @param tag_name: the name, from tag table, of the field to be exported
     looks initially for names prefixed by "meta-"<tagname>
     then looks for exact name, then falls through to "tag"
     @param tag: the MARC tag to be exported (only if not defined by tag_name)
     @param name: name to be displayed in the meta headers, labelling this value
     @param respect_file_visiblity: check the 8564_z if we are allowed to show a file
+    @param author_only: as google scholar, the author field is for authors only, 
+                        not editor nor director
     """
     
     # for files case, make different rule
     if respect_file_visiblity:
         values = []
         visiblities = bfo.fields('8564_x', escape)
         files = bfo.fields('8564_u', escape)
         
         for i, file in enumerate(files):
             # show only public
             try:
                 if visiblities[i] == 'PUBLIC':
                     values.append(file)
             except KeyError:
                 continue
     else:
         tags = []
         if tag_name:
             # First check for special meta named tags
             tags = get_field_tags("meta-" + tag_name)
             if not tags:
                 #then check for regular tags
                 tags = get_field_tags(tag_name)
         if not tags and tag:
             # fall back to explicit marc tag
             tags = [tag]
         if not tags:
             return ''
-
-        values = [bfo.fields(marctag,escape=escape) for marctag in tags]
+        
+        if author_only:
+            # author special case :
+            # no editor or director
+            values = []
+            for marctag in tags:
+                if marctag == '700__a':
+                    # get full data
+                    authors_info = bfo.fields('700',escape=escape)
+                    for author_info in authors_info:
+                        if not author_info.has_key('e'):
+                            values.append(author_info['a'])
+                else:
+                    values.append(bfo.fields(marctag,escape=escape))
+        else:
+            values = [bfo.fields(marctag,escape=escape) for marctag in tags]
     
     
     out = []
     for value in values:
         if isinstance(value, list):
             for val in value:
                 if isinstance(val, dict):
                     out.extend(val.values())
                 else:
                     out.append(val)
         elif isinstance(value, dict):
             out.extend(value.values())
         else:
             out.append(value)
     out = dict(zip(out, len(out)*[''])).keys()
 
     return '\n'.join([create_html_tag('meta', name=name, content=value) for value in out])
 
 def escape_values(bfo):
     """
     Called by BibFormat in order to check if output of this element
     should be escaped.
     """
     return 0