== Reference "DavN" == 

 I think the reference is wrong in the background chapter, where it is defined as  

 Norman Davies, ''God's Playground: A History of Poland in Two Volumes'', Oxford University Press, p.151. 

 The reference is alleready definded in the first chapther, second paragraph as  

 Norman Davies, ''God's Playground: A History of Poland in Two Volumes'', Oxford University Press, ISBN 0199253390, [http://books.google.com/books?id=b912JnKpYTkC&pg;=PA50&dq;=Poland+Lithuania+union+Muscovy&ei;=rKdLR4jZLoTg6wKK0OTzBg&sig;=lJexA_ptb7OrQc5gz1NSBrQLS2U Google Print, p.50]. 

 With the current definitions of the reference you don't get link to both sides in Google Print. On top of that, page 151 in the book don't give any meaning to the content in the chapter. I have glanced through the book and think the reference in the backgroundchapter should be like this:  

 Norman Davies, ''God's Playground: A History of Poland in Two Volumes'', Oxford University Press, ISBN 0199253390, [http://books.google.com/books?id=b912JnKpYTkC&lpg;=PA151&dq;=Poland%20Lithuania%20union%20Muscovy&hl;=sv&pg;=PA121#v=onepage&q;=Poland%20Lithuania%20union%20Muscovy&f;=false Google Print, p.121] 

 as page 121 in the book relates to the topic.