- Author: Daniel Madar
- Language: English
- Year: 2009
- Author: Jones Handel Hydn
- Language: English
- Year: 2011
- Author: Fried. Krupp AG, Krupp family, Batty Peter
- Language: English
- Year: 2001
- Author: Fried. Krupp GmbH, James Harold, Krupp family
- Language: English
- Year: 2017
- Author: Krupp Alfred, Krupp Alfried, Krupp family., Krupp Friedrich Alfred, Manchester William
- Language: English
- Year: 2017