Rhenish Regional History
Links
- https://www.igw.uni-bonn.de/fnzrlg/en/research/rhenish-regional-history/nordrheinisches-klosterbuch
- https://www.igw.uni-bonn.de/fnzrlg/en/research/rhenish-regional-history/project-zeichen
- https://www.igw.uni-bonn.de/fnzrlg/en/research/rhenish-regional-history/digitaler-rheinischer-staedteatlas
- https://www.igw.uni-bonn.de/fnzrlg/en/research/rhenish-regional-history/kleine-welten