Robinson, Janet and Joe Robinson, Handbook of Imperial Germany (Bloomington, Indiana: AuthorHouse, 2009), page 87
Frederick Martin, ed., The Statesman's Yearbook: A Statistical, Genealogical, and Historical Account of the States and Sovereigns of the Civiised World for the Year 1866 (London and Cambridge: MacMillan and Co., 1866) pàg. 173(anglès)
Martin, Fredrick, ed., The Statesman's Yearbook 1866, page 174. "... the finances of the duchy do not allow the maintenance of a large force, the troops required for actual service are drawn by conscription, in the form of ballot."
loc.gov
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58th Congress, 2nd Session, Senate Document No. 234, Journal of the Congress of the Confederate States of America, 1861–1865, Volume 5 (Washington, D. C.: Government Printing Office, 1905), page 422
Fitzroy, Almeric. Clerk of the Privy Council, "The Titles Deprivation Act, 1917", The London Gazette, Her Majesty's Stationery Office, London, England, 28 March 1919, Issue No 31255, page 4000