1. Itinerary retrieval
2. M. L. Berman etal Historical Gazetteer System Integration: CHGIS Regnum Francorum and GeoNames. www.fas.harvard.edu/~chgis/gazetteer/AAG_GazIntegration_23feb2012.pdf. Version: 23.02.12. M. L. Berman et al. Historical Gazetteer System Integration: CHGIS Regnum Francorum and GeoNames. www.fas.harvard.edu/~chgis/gazetteer/AAG_GazIntegration_23feb2012.pdf. Version: 23.02.12.
3. Retrieval in text collections with historic spelling using linguistic and spelling variants
4. H. Krüger. Das älteste deutsche Routenhandbuch. Jörg Gails Raißbüchlin. 1974. Akad. Druck- und Verlagsanstalt Graz. H. Krüger. Das älteste deutsche Routenhandbuch. Jörg Gails Raißbüchlin. 1974. Akad. Druck- und Verlagsanstalt Graz.
5. Geocoding for texts with fine-grain toponyms