- Author: Titu Andreescu Dorin Andrica Zuming Feng
- Language: English
- Year: 2006
- Author: Titu Andreescu Dorin Andrica
- Language: English
- Year: 2005
- Author: Titu Andreescu Oleg Mushkarov Luchezar Stoyanov
- Language: English
- Year: 2005
- Author: Titu Andreescu Dorin Andrica
- Language: English
- Year: 2005
- Author: Titu Andreescu Răzvan Gelca (auth.)
- Language: English
- Year: 2009
- Author: Titu Andreescu Răzvan Gelca (auth.)
- Language: English
- Year: 2009
- Author: Titu Andreescu Zuming Feng
- Language: English
- Year: 2004
- Author: Titu Andreescu Zuming Feng
- Language: English
- Year: 2004
- Author: Titu Andreescu Zuming Feng
- Language: English
- Year: 2002
- Author: Titu Andreescu Zuming Feng
- Language: English
- Year: 2004