- Author: Antonio Masala
- Language: Italian
- Year: 2012
- Author: Jean-Rene Vernes
- Language: English
- Year: 2000
- Author: A. Chmielewski R. Konik D. Leszczyński A. Pacewicz (red.)
- Language: Polish
- Year: 2014
- Author: Mikko Yrjönsuuri
- Language: English
- Year: 1994
- Author: Alfred North Whitehead, Hermann Herbert Watzlawick
- Language: Portuguese
- Year: 2006
- Author: Michael Zimmerman
- Language: English
- Year: 2004
- Author: Jiří Buriánek
- Language: Czech
- Year: 1993
- Author: Anton Hügli Curzio Chiesa
- Language: German
- Year: 2010
- Author: Englebretsen G.
- Language: English
- Year: 1996