- Author: Terry Wolfer, Melissa Reitmeier
- Language: English
- Year: 2021
- Author: Terry Wolfer, Vicki Runnion
- Language: English
- Year: 2008
- Author: Stefan Engelberg (editor), Henning Lobin (editor), Kathrin Steyer (editor), Sascha Wolfer (editor)
- Language: German
- Year: 2018
- Author: Stefan Engelberg (editor), Henning Lobin (editor), Kathrin Steyer (editor), Sascha Wolfer (editor)
- Language: German
- Year: 2018
- Author: Dianne Wolfer
- Language: English
- Year: 2020
- Author: Recorded Books Inc., Wolfer Alexis
- Language: English
- Year: 2016
- Author: Joachim Wolfer
- Language: German
- Year: 1992
- Author: Terry A. Wolfer Lori D. Franklin and Karen A. Gray
- Language: English
- Year: 2013
- Author: Terry A. Wolfer and Vicki M. Runnion
- Language: English
- Year: 2008