Reference

Burnham Coos Stickney

• Burnham Coos Stickney, Typewriting Machine − US Patent 1549622 A, 1923

Colemak Keyboard Layouts

• Colemak keyboard layout
• Colemak Mod-DH

Ergonomics

The physiological and medical effects of split keyboards and the large forearm support were elaborated in "Studies on Ergonomically Designed Alphanumeric Keyboards" by Prof. Nakaseko and others. The history of the split keyboards and recent researches are summarized in "The Split Keyboard: An Ergonomics Success Story" by Prof. David Rempel.

• ANSI/HFES 100-2007 Human Factors Engineering of Computer Workstations, Human Factors and Ergonomics Society, 2007.
• Nakaseko,M., Grandjean,E., Hunting,W., and Gierer,R. Studies on ergonomically designed alphanumeric keyboards, Human Factors, 27, 175-187, 1985.
• Nakaseko,M., Ergonomic contribution to keyboard design, Japanese Journal of Ergonomics 22(2), 53-61, 1986. (in Japanese)
• David Rempel, The Split Keyboard: An Ergonomics Success Story, Human Factors: The Journal of the Human Factors and Ergonomics Society June 1, 50:385-392, 2008.
• David Rempel, The Latest Thinking on Computer-Related Pain, The New York Times Company, 2008.
• Anna Pereira, David L. Lee, Harini Sadeeshkumar, Charles Laroche, Dan Odell, David Rempel, The Effect of Keyboard Key Spacing on Typing Speed, Error, Usability, and Biomechanics: Part 1, Human Factors, 55(3), 557-566, 2013.
• Makiko Kouchi, 2012：AIST日本人の手の寸法データ. (in Japanese)

Japanese keyboard layouts

• Keyboard layout - Japanese, Wikipedia

TRON Keyboard

• Sadao Tachibana, Ken Sakamura. An Implementation of the TRON Keyboard, TRON Project 1987 Open-Architecture Computer Systems, 1987.
• TRON keyboard, Wikimedia