Bronnen

bronnen mei1940
bronnen mei1940
  1. Nationaal Archief
  2. Greg Goebel’s IN THE PUBLIC DOMAIN
  3. The Heritage of the Great War 
  4. List of films in the public domain in the United States – Wikipedia
  5. Wikipedia
  6. Wikipedia:Auteursrechten – Wikipedia
  7. Creative Commons — Attribution-ShareAlike 3.0 Unported — CC BY-SA 3.0
  8. Gevechtsverslagen Meidagen 1940 online – Mei 1940, Informatie over de Tweede Wereldoorlog
  9. Bundesarchiv, files, photos, films and more.