Geschiedenis van Delft Slag in de schaduw : Peel/Maas 1944-45 / A. Korthals Altes & N.K.C.A. in 't Veld Assessing war : the challenge of measuring success and failure / Leo J. Blanken, Hy Rothstein, Jason J. Lepore, editors Wright to fly : celebrating 100 years of powered flight / compiled by Peter R. March
