Eliason, Craig (October 2015). ""Transitional" Typefaces: The History of a Typefounding Classification". Design Issues. 31 (4): 30–43. doi:10.1162/DESI_a_00349. S2CID57569313.
Ovink, G.W. (1 January 1972). "Nineteenth-century reactions against the didone type model-III". Quaerendo. 2 (2): 122–128. doi:10.1163/157006972X00229.
Ovink, G. Willem (1973). "Review: Jan van Krimpen, A Letter to Philip Hofer". Quaerendo. 3 (3): 239–242. doi:10.1163/157006973X00237.
eyemagazine.com
Twemlow, Alice. "Forensic Types". Eye Magazine. Retrieved 6 October 2014.
Barnes & Schwarz. "Type Tuesday". Eye. Retrieved 10 August 2015.
Shaw, Paul (10 February 2011). "Overlooked Typefaces". Print magazine. Retrieved 2 July 2015.
semanticscholar.org
api.semanticscholar.org
Eliason, Craig (October 2015). ""Transitional" Typefaces: The History of a Typefounding Classification". Design Issues. 31 (4): 30–43. doi:10.1162/DESI_a_00349. S2CID57569313.
shinntype.com
Shinn, Nick. "Modern Suite"(PDF). Shinntype. Archived from the original(PDF) on 25 February 2021. Retrieved 11 August 2015.
spiekermann.com
Spiekermann, Erik. "Helvetica Sucks". Spiekermann blog. Retrieved 15 July 2015.