| Titel | ISBN-13 | Erschei- nungsjahr | andere Autoren |
|---|---|---|---|
| Biographical Index of the Middle Ages / Biographischer Index des Mittelalters / Index Biographique du Moyen-Âge | 978-3-598-35437-3 | 2008 | |
| Constitutions of the World 1850 to the Present / Europe | 978-3-598-35204-1 | 2002 | Horst Dippel |
| Constitutions of the World 1850 to the Present / Europe | 978-3-598-35205-8 | 2002 | " |
| Constitutions of the World 1850 to the Present: Index of European Constitutions 1850 to 2003 | 978-3-598-35222-5 | 2005 | " |
| Constitutions of the World 1850 to the Present / Index of North and South American Constitutions 1850 to 2007 | 978-3-598-35520-2 | 2007 | " |
| Constitutions of the World 1850 to the Present / North and South America | 978-3-598-35500-4 | 2004 | " |
| Constitutions of the World 1850 to the Present / North and South America | 978-3-598-35501-1 | 2004 | " |