Jack,

You might have a look at (the German translation):

G. Swederus: Schwedens Politik und Kriege in den Jahren 1808 bis 1814. Leipzig: F. Fleischer, 1866
vol. I: http://books.google.de/books?id=7FNKAAAAYAAJ
vol. II: http://books.google.de/books?id=u95SAAAAcAAJ

The work is in some sense biased (pro Bernadotte and against the earlier Prussian General Staff work from the late 1850ies/early 1860ies by Quistorp and others: Geschichte der Nord-Armee im Jahre 1813, last volume: http://books.google.de/books?id=yqlBAAAAcAAJ ). Quistorp reflects in his later classical work (Geschichte der Nord-Armee 1813, 1894, http://books.google.de/books?id=qyMPAAAAYAAJ ) on Swederus and critizes in return his book .

Enjoy reading!

Best wishes for 2014, also to all other NSF members,
Thomas