Helsinki Accords signed in order to facilitate the development of 'Security and Cooperation in Europe'.
Editors. "Helsinki Accords signed; Organization for Security and Cooperation in Europe founded". The Literary Encyclopedia. First published 01 February 2010; last revised 30 November -1.
[http://www.litencyc.com/php/stopics.php?rec=true&UID=3628, accessed 21 April 2015.]