Specifically on the assassination of archduke Franz Ferdinand, the young Bosnians, or generally about the forces in play and events that lead up to the assassination. Some friends and I have decided to make a short film based on the group of assassins, but first we need to read so we can use historical details to emphasise our point. Any help would be greatly appreciated.
Geoffrey Wawro's A Mad Catastrophe: The Outbreak of World War I and the Collapse of the Habsburg Empire is an example of recent scholarship on the Hapsburgs's entry into the war. Searching for Princip is a journalist's account of trying to delve into the mentality of Princip.
On a side note, your title's typo "WWI Sauces" is one of the more amusing titles I have seen here
Have you checked out the FAQ?
it links to many good posts, you might find what you need there!