Editors. "Undecided battle of Zorndorf between Prussians and Russians". The Literary Encyclopedia. First published 30 December 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=17726, accessed 19 May 2013.]
The Battle of Zorndorf (present-day Sarbinowo, Poland) is fought between a Prussian force led by Frederick the Great, and a Russian army under Fermor. It ends inconclusively, but two days later, Russian troops begin to withdraw.