Appendices: Speech delivered by Dr. von Bethmann-Hollweg, August 4th, 1914.--Speech delivered by Dr. von Bethmann-Hollweg, December 2nd, 1914.--Circul...
Appendices: Speech delivered by Dr. von Bethmann-Hollweg, August 4th, 1914.--Speech delivered by Dr. von Bethmann-Hollweg, December 2nd, 1914.--Circular note of Dr. von Bethmann-Hollweg, December 24th, 1914.
Until November 1918 also attributed to Robert Michels and others.