
- Author: Marlon Lee Moncrieffe
- Language: English
- Year: 2020

- Author: Jutta Ecarius Johannes Bilstein
- Language: German
- Year: 2020

- Author: Rick Lybeck
- Language: English
- Year: 2020

- Author: Matthias Huber
- Language: German
- Year: 2020

- Author: Marcel Scholz
- Language: German
- Year: 2020

- Author: Kristina Schierbaum
- Language: German
- Year: 2020

- Author: Wolf Rainer Wendt
- Language: German
- Year: 2020

- Author: Jian Li Eryong Xue
- Language: English
- Year: 2020