- Author: Steven P. Sondrup, Randall L. Jones
- Language: German
- Year: 1989
- Author: Jupp Möhring, Erwin P. Tschirner, Elisabeth Muntschick, Randall L. Jones
- Language: English
- Year: 2020
- Author: Randall L. Jones Erwin Tschirner
- Language: english
- Year: 2006