- Author: Ulrich Hampicke
- Language: German
- Year: 2018
- Author: J. van Huissteden
- Language: English
- Year: 2020
- Author: Lothar Mueller Frank Eulenstein
- Language: English
- Year: 2019
- Author: Rob Roggema
- Language: English
- Year: 2020
- Author: Todd R. Lookingbill Peter D. Smallwood
- Language: English
- Year: 2019
- Author: Leopold Hufnagl
- Language: German
- Year: 1939