Morison, Stanley; Carter, Harry (1973). "Chapter 8: Ehrhardt". A Tally of Types. Cambridge: Cambridge University Press. pp. 117–122. ISBN978-0-521-09786-4. Retrieved 11 September 2015.
Morison, Stanley (2009). "Chapter 8: Leipzig as a Centre of Type-Founding". In McKitterick, David (ed.). Selected essays on the history of letterforms in manuscript and print (Paperback reissue, digitally printed version ed.). Cambridge: Cambridge University Press. pp. 149–170. ISBN978-0-521-18316-1.
Boag, Andrew (2000). "Monotype and Phototypesetting"(PDF). Journal of the Printing History Society: 57–77. Archived from the original(PDF) on 28 March 2016. Retrieved 22 July 2016.
linotype.com
Luin, Franko. "Kis Classico LT". Linotype. Retrieved 11 September 2015.
mbtype.com
Butterick, Matthew. "Equity specimen"(PDF). Practical Typography. Retrieved 13 July 2015.
myfonts.com
"Janson Text". MyFonts. Adobe/Linotype. Archived from the original on March 5, 2003. Retrieved 5 November 2015.
"Ehrhardt". MyFonts. Monotype. Archived from the original on March 20, 2003. Retrieved 14 June 2015.
"Berthold Kis". MyFonts. Berthold. Retrieved 11 September 2015.
"Janson Text". MyFonts. Adobe/Linotype. Archived from the original on March 5, 2003. Retrieved 5 November 2015.
Boag, Andrew (2000). "Monotype and Phototypesetting"(PDF). Journal of the Printing History Society: 57–77. Archived from the original(PDF) on 28 March 2016. Retrieved 22 July 2016.
"Ehrhardt". MyFonts. Monotype. Archived from the original on March 20, 2003. Retrieved 14 June 2015.