- Author: Weinbuch Helmut Konrad
- Language: German
- Year: 1968
- Author: Helmut Konrad
- Language: German
- Author: Helmut Konrad, Gerhard Botz, Stefan Karner, Siegfried Mattl
- Language: German
- Year: 2011
- Author: Stefan Karner, Gerhard Botz, Helmut Konrad
- Language: German
- Year: 2017
- Author: Helmut Konrad (editor), Wolfgang Maderthaner (editor)
- Language: English
- Year: 2013
- Author: Masao Nishikawa, Helmut Konrad, Masaki Watanabe
- Language: English
- Year: 2010
- Author: Helmut Konrad, Wolfgang Maderthaner
- Language: English
- Year: 2013