Hitler's fortresses ; German fortifications and defences 1939-45 / edited by Chris McNab ; index by Sharon Redmayne ; cartography by Boundford and The Map … Hitler's Reich and Churchill's Britain : a conversation between Stephen Laird and Walter Graebner ("Time", "Life" and "Fortune" correspondants in Berlin and London) Duitse fortificatie-ontwerp 1935-1945 / R. Rolf