- "Austria-Hungary Declares War on Serbia." History.com. A&E Television Networks. Web. 16 Sept. 2014. <http://www.history.com/this-day-in-history/austria-hungary-declares-war-on-serbia>.
- Duffy, Michael. "Feature Articles - The Causes of World War One." First World War.com. 22 Aug. 2009. Web. 21 Sept. 2014. <http://www.firstworldwar.com/origins/causes.htm>.
- "Franz Ferdinand Biography." Bio.com. A&E Networks Television. Web. 21 Sept. 2014.
- Hellfeld, Matthias Von. "The Assassination That Started World War I." Dw. Deutsche Welle, 17 Oct. 2012. Web. 21 Sept. 2014. <http://www.dw.de/the-assassination-that-started-world-war-i/a-4744730>.Llewellyn, Jennifer, Jim Southey, and Steve Thompson. "Austria-Hungary before World War I." World War I. Alpha History. Web. 21 Sept. 2014. <http://alphahistory.com/worldwar1/austria-hungary/>.
- Monarchist, Mad, The. "The Mad Monarchist: Monarchist Military: The Austro-Hungarian Army of World War I." Web log post. The Mad Monarchist: Monarchist Military: The Austro-Hungarian Army of World War I. 19 Dec. 2012. Web. 21 Sept. 2014. <http://madmonarchist.blogspot.com/2012/12/monarchist-military-austro-hungarian.html>.
- Simpson, Matt. "The Minor Powers During World War One - Austria-Hungary." First World War.com. 22 Aug. 2009. Web. 16 Sept. 2014. <http://www.firstworldwar.com/features/minorpowers_ah.htm>.
- Tharoor, Ishann. "The Assassination of Archduke Franz Ferdinand and the Drumbeats of War." Washington Post. The Washington Post, 6 June 2014. Web. 16 Sept. 2014. <http://www.washingtonpost.com/blogs/worldviews/wp/2014/06/28/the-assassination-of-archduke-franz-ferdinand-and-the-drumbeats-of-war/>.
- All images on this site are linked to their original sources