Damgaard Petersen, I. (1971) “Trumbull Higgins: Hitler and Russia, The Third Reich in a two Front War 1937-1943. New York, MacMillan, London, Collier-MacMillan, 1966. x+310 s. 55 sh.”, Historisk Tidsskrift, 120. Tilgængelig hos: https://tidsskrift.dk/historisktidsskrift/article/view/51302 (Set: 18oktober2019).