U-boat Attack, 1916 - Description of an attack on a cargo vessel. - http://www.eyewitnesstohistory.com/sub.htm
Germany's Use of Chemical Warfare in the World War I - A paper focusing primarily on the offensive use of chemical agents and will discuss the defensive measures of the Allies. - http://www.firstworldwar.com/features/chemical_warfare.htm
The Prussian Machine - A depiction of the leadership and organizational structure of the army during the Great War. - http://home.comcast.net/~jcviser/index.htm/
The Imperial German Army - Listing of regiments and units of the line up till 1914 with garrison town, army corps and date raised, including some information on the formation, organization, history, and resources. - http://users.hunterlink.net.au/~maampo/militaer/milindex.html