Editors. "Conference to modify Federal Act of German States". The Literary Encyclopedia. First published 01 March 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=13822, accessed 19 June 2013.]
Prince Metternich uses influence to begin conference in Vienna to modify the Federal Act of the German States in order to fix the functions of the Diet, with idea of eliminating all elements of constitutional control in German States.