Archived 2010-02-12 at the Wayback Machine "German Royalties in General Flight; Two Princesses Wounded by Bullets", The New York Times, Copenhagen, 10 November 1918
Accesat în 2 ianuarie 2010.  ^ a b „German Royalties in General Flight; Two Princesses Wounded by Bullets”, The New York Times, Copenhagen, 10 noiembrie 1918