"The Kingdom of the Netherlands During the Second World War" (Het Koninkrijk der Nederlanden in de Tweede wereldoorlog), Volume I, Voorspel (Prelude), The Foundation for the Production and Translation of Dutch Literature [1]Archived 25 October 2007 at the Wayback Machine
"The Kingdom of the Netherlands During the Second World War" (Het Koninkrijk der Nederlanden in de Tweede wereldoorlog), Volume I, Voorspel (Prelude), The Foundation for the Production and Translation of Dutch Literature [1]Archived 25 October 2007 at the Wayback Machine