- Author: Bernhard Kagan
- Language: German
- Year: 1923
San Luis 2005
pdf
- Author: Alik Gershon, Jacob Aagaard, Igor Nor
- Language: English
- Year: 2007
- Author: Ozul Sofia, Tukmakov Vladimir, Gurevich Inga
- Language: English
- Year: 2012
- Author: Kozma Július
- Language: Czech
- Year: 1989
- Author: Polihroniade Elisabeta
- Language: Romanian
- Year: 1980
- Author: Alekhine Alexander
- Language: Spanish
- Year: 1986