49 Squadron RAF http://www.49squadron.co.uk/

218 Squadron RAF https://218squadron.wordpress.com/

Australian war memorial: Australian War Memorial

Battle of Britain http://battleofbritain1940.com/

British and Commonwealth Air Unit Register van Frank Haslam. Hier kan men adressen vinden van squadrons, RAF Stations, Training and Maintenance Units, Wings, Groups en Commands. http://www.associations.rafinfo.org.uk

Commonwealth War Graves Commission: https://www.cwgc.org/

Czechoslovak Airmen in the Royal Air Force 1940-1945: https://cz-raf.webnode.cz/

Dambusters Blog https://dambustersblog.com/

International Bomber Command Centre https://internationalbcc.co.uk/

International Bomber Command Centre Losses Database https://losses.internationalbcc.co.uk/

Legion Magazine (Canadees tijdschrift): Legion Magazine

Polish Squadrons Remembered http://www.polishsquadronsremembered.com/

Polish WWII Aces http://members.tripod.com/~marcin_w/index-paces.html

RAF Commands: http://www.rafcommands.com/

WWII, a British Focus: http://warlinks.com/