Herwig, Holger H. and Pflanze, Otto
"Bismark and the Development of Germany, Vol. I: The Period of Unification, 1815-1871; Vol. II: The Period of Consolidation, 1871-1880; Vol. III: The Period of Fortification, 1880-1898,"
Naval War College Review: Vol. 45
, Article 26.
Available at: https://digital-commons.usnwc.edu/nwc-review/vol45/iss2/26