- Author: Lars Petersen (auth.)
- Language: German
- Year: 1998
- Author: Professor Dr. Elisabeth Noelle-Neumann Dr. Thomas Petersen (auth.)
- Language: German
- Year: 2005
- Author: Shapiro Francine, Petersen Karin
- Language: German
- Year: 2013
- Author: Petersen Lea
- Language: German
- Year: 2016
- Author: Petersen Floriana, Schurr Monika Elisa
- Language: German
- Year: 2016
EL NIÑO
epub
- Author: Petersen Lea
- Language: German
- Year: 2013
- Author: Iversen Bent, Lindencrone Petersen Lars, Wegener Morten
- Language: Danish
- Year: 2012
- Author: Christiansen Bo, Jensen Bent, Petersen Erik
- Language: Danish
- Year: 2011
- Author: Joshel Sandra R., Hackworth Petersen Lauren
- Language: English
- Year: 2014