books.google.de - This is the first English translation of important writings on the Thirty Years' War by the great Soviet historian B.F. Porshnev. Dukes has selected the most enlightening areas of Porshnev's unparalleled research to fill a crucial gap in our understanding of the conflict, and has set Porshnev's work...http://books.google.de/books/about/Muscovy_and_Sweden_in_the_Thirty_Years_W.html?hl=de&id=jogvt0ZHZZsC&utm_source=gb-gplus-shareMuscovy and Sweden in the Thirty Years' War 1630-1635
