- Author: Project Muse., Kowalski Dean A., Kreider S. Evan, Whedon Joss
- Language: English
- Year: 2012
- Author: Kowalski Dean A
- Language: English
- Year: 2012
- Author: Kowalski Dean A
- Language: English
- Year: 2012
- Author: Irwin William, Kowalski Dean A., Reitz Barbara, Wollermann Thomas
- Language: German
- Year: 2015