- Author: Adhemar Bultheel and Marc Van Barel (Eds.)
- Language: English
- Year: 1997
- Author: Adhemar Bultheel (auth.)
- Language: English
- Year: 1987
- Author: Sydney R. Parker Armen H. Zemanian (auth.) Adhemar Bultheel Patrick Dewilde (eds.)
- Language: English
- Year: 1983
- Author: Bultheel A. et al.
- Language: English
- Year: 1999
- Author: Adhemar Bultheel Pablo Gonzalez-Vera Erik Hendriksen Olav Njastad
- Language: English
- Year: 2009
- Author: Adhemar Bultheel Pablo Gonzalez-Vera Erik Hendriksen Olav Njastad
- Language: English
- Year: 2009
- Author: A. Bultheel M. Van Barel
- Language: English
- Year: 1997
- Author: Adhemar Bultheel Adhemar Bultheel Ronald Cools
- Language: English
- Year: 2009
- Author: Adhemar Bultheel Adhemar Bultheel Ronald Cools
- Language: English
- Year: 2010
- Author: Adhemar Bultheel Pablo Gonzalez-Vera Erik Hendriksen Olav Njastad
- Language: English
- Year: 2009