- Author: Mechler Ernst, Mueller Markus S
- Language: English
- Year: 2005
- Author: Kuete Victor
- Language: English
- Year: 2014
- Author: Fischer Toni, Hempen Carl-Hermann
- Language: English
- Year: 2009
- Author: Schalk Simone
- Language: German
- Year: 2016
- Author: Knaur MensSana, Asch Peter
- Language: German
- Year: 2016
- Author: Hensel Wolfgang
- Language: German
- Year: 2016
- Author: Grünwald Jörg, Jänicke Christof
- Language: German
- Year: 2015
- Author: Langwasser Frau Dr. Maria
- Language: German
- Year: 2014
- Author: Céspedes Carlos L
- Language: English
- Year: 2013
- Author: Bütow-Hauenschild Bettina
- Language: German
- Year: 2017