Short N.

The Führer's Headquarters: Hitler's command bunkers 1939-45

Fortress. 100

Osprey Publishing, 2010. - 64 p.

ISBN: 978-1-84603-582-1 (Print), 9-7818-4908-302-7 (E-book)

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Turnbull S.

Crusader Castles of the Teutonic Knights (1): The red-brick castles of Prussia 1230-1466

Fortress. 11

Osprey Publishing Ltd., 2003. - 64 p.

ISBN: 9781841765570

Доступно для скачивания