Plesman : portret van een luchtreder Plesman : grondlegger van de gouden KLM : 1919-1969 Wiley Post, His Winnie Mae and the World's First Pressure Suit Huisje boompje beestje Designers and test pilots Black wings : the American black in aviation 75 Years of Aerospace Research in the Netherlands : 1919-1994 aviator Let's fly : an A.B.C. of Flying society of experimental test pilots : history of the first 20 years Testpilot brief History of Rochester Airport