Baltic Convention between Germany, Sweden, Denmark and Russia, and North Sea Convention between Britain, Germany, Denmark, France and the Netherlands to maintain the status quo on the shores of the two seas.
Editors. "Baltic Convention". The Literary Encyclopedia. First published 01 March 2010; last revised 30 November -1.
[http://www.litencyc.com/php/stopics.php?rec=true&UID=11879, accessed 28 April 2015.]