- Author: Ingo Plag, Maria Braun, Sabine Lappe, Mareile Schramm
- Language: English
- Year: 2011
- Author: Ingo Plag, Sabine Arndt-Lappe, Maria Braun, Mareile Schramm
- Language: English
- Year: 2015
- Author: Ingo Plag, Sabine Arndt-Lappe, Maria Braun, Mareile Schramm
- Language: English
- Year: 2015
- Author: Ingo Plag, Maria Braun, Sabine Lappe, Mareile Schramm
- Language: English
- Year: 2009
- Author: Dany Adone (editor), Ingo Plag (editor)
- Language: English
- Year: 1994
- Author: Ingo Plag (editor)
- Language: English
- Year: 2003
- Author: Parth Bhatt (editor), Ingo Plag (editor)
- Language: German
- Year: 2006
- Author: Vito Pirrelli (editor), Ingo Plag (editor), Wolfgang U. Dressler (editor)
- Language: English
- Year: 2020
