On the French EDG forum:
http://www.edgbonsai-fr.com/index.php?option=com_smf&Itemid=110&topic=9707.msg123910;topicseen#msg123910
On the German bff forum:
http://www.bonsai-fachforum.de/ftopic10558.html
and
http://www.bonsai-fachforum.de/ftopic13835.html
