^W. Pembroke Fetridge (1881), "Stuttgart", Harper's Hand-book for Travellers in Europe and the East, New York: Harper & Brothers
^ abLynn K. Nyhart (2009), Modern nature: the rise of the biological perspective in Germany, Chicago: University of Chicago Press, ISBN9780226610894, OL16943386M, 0226610896
^Roger Philip Chickering (1969). "Peace Movement and the Religious Community in Germany, 1900-1914". Church History. 38 (3): 300–311. doi:10.2307/3163154. JSTOR3163154. S2CID162278135.
^"Bisherige Gartenschauen" [Previous Garden Shows] (in German). Bonn: Deutsche Bundesgartenschau-Gesellschaft. Retrieved 2 December 2013.
^Mary H. Munroe (2004). "Holtzbrinck Timeline". The Academic Publishing Industry: A Story of Merger and Acquisition. Archived from the original on 2014-10-20 – via Northern Illinois University.
^"Germany". Art Spaces Directory. New York: New Museum. Retrieved 1 December 2013.
P. Krauss und E. Uetrecht, ed. (1913). "Stuttgart". Meyers Deutscher Städteatlas [Meyer's Atlas of German Cities] (in German). Leipzig: Bibliographisches Institut.
Stuttgart [Chronicles of the German Cities]. Die Chroniken der Deutschen Städte (in German). Vol. 33–36. Leipzig: S. Hirzel. 1928–1931.