- Author: Ana Moreno
- Language: Spanish
- Year: 2015
- Author: George B. Stauffer
- Language: English
- Year: 1980
- Author: Robert Lewis Marshall
- Language: English
- Year: 1989
- Author: Karl Geiringer, Irene Geiringer
- Language: English
- Year: 1954
- Author: Paul Badura-Skoda, Alfred Clayton (trans.)
- Language: English
- Year: 1993
- Author: Alfred Dürr
- Language: German
- Year: 1971
- Author: Martin Geck, John Hargraves (trans.)
- Language: English
- Year: 2006
- Author: Gerhard Herz
- Language: German
- Year: 1984
- Author: Russell Stinson
- Language: English
- Year: 1999
- Author: Hofstadter Douglas R
- Language: English
- Year: 1999