- Author: Christian Dirninger, Robert Kriechbaumer, Reinhard Heinisch, Franz Wieser
- Language: German
- Year: 2022
- Author: Glenn W. Muschert (editor), Kristen M. Budd (editor), Michelle Christian (editor), Robert Perrucci (editor)
- Language: English
- Year: 2020
- Author: Christian P. Robert George Casella
- Language: English
- Year: 2009
- Author: Christian P. Robert, George Casella
- Language: English
- Year: 2004
- Author: Christian Peters Robert Quast
- Language: German
- Year: 2019
- Author: Christian Voigt Robert Yuncken
- Language: English
- Year: 2020
- Author: Christian Voigt Robert Yuncken
- Language: English
- Year: 2020
- Author: Minasi Mark, Greene Kevin, Booth Christian, Butler Robert, McCabe John, Panek Robert, Rice Michael, Roth Stefan
- Language: English
- Year: 2014
- Author: Mark Minasi, Kevin Greene, Christian Booth, Robert Butler, John McCabe, Robert Panek, Michael Rice, Stefan Roth
- Language: English
- Year: 2014
