Pokus o zastavení třicetileté války : mírová jednání v Brunšviku 1625-1626 - Kollmann, Josef (Praha : Academia, 1989)
Summary in German and Russian.
Includes bibliographical references.
Keywords: Thirty Years' War, 1618-1648 -- Diplomatic history; Thirty Years' War, 1618-1648 -- Peace; Braunschweig (Germany) -- History