Alleviation of Jet Aircraft Noise Near Airports : A Report of the Jet Aircraft Noise Panel Leerboek der Luchtvaart navigatie Motoren met vleugels : luchtvaart voor jonge mensen Structural design of metal airplanes Afsluitdijk 1940 World War II : Land, Sea & Air Battles 1939-1945 War below zero : the battle for Greenland Royal Air Force : Britain at war from january 1941 to March 1942 Royal Air Force : Britain at war from april 1942 to June 1943 Royal Air Force : Britain at war from october 1944 to September 1945 Fighter Aces of the R.A.F. : 1939-1945 Luftkriegfuhrung in zweiten Weltkrieg