Hagen Keller
- Classics top 5%
- Historical, Literary, and Cultural Studies 17
- Byzantine Studies and History 10
- Medieval Literature and History 5
- History top 5%
- Historical and Archaeological Studies 8
- Historical and Religious Studies of Rome 7
- Classical Studies and Legal History 4
- European Political History Analysis 4
- Archeology top 10%
- Medieval European History and Architecture 6
Hagen Keller
35 papers receiving 67 citations
Peers
Comparison fields: 5 of 32
- Classics 61
- History 57
- History and Philosophy of Science 7
- Archeology 15
- Conservation 4
Countries citing papers authored by Hagen Keller
This map shows the geographic impact of Hagen Keller's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Hagen Keller with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Hagen Keller more than expected).
Fields of papers citing papers by Hagen Keller
This network shows the impact of papers produced by Hagen Keller. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Hagen Keller. The network helps show where Hagen Keller may publish in the future.
Co-authorship network
The 4 scholars most cited alongside Hagen Keller, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.
All Works
| # | Work | ||
|---|---|---|---|
| 1 | 2012 | 1 | |
| 2 | 2005 | 1 | |
| 3 | Ottonische Königsherrschaft : Organisation und Legitimation königlicher Macht | 2002 | 1 |
| 4 | Gli statuti dell'Italia settentrionale come testimonianza e fonte per il processo di affermazione della scrittura nei secoli XII e XIII | 1998 | 2 |
| 5 | Vom Kloster zum Klosterverband : das Werkzeug der Schriftlichkeit : Akten des Internationalen Kolloquiums des Projekts L 2 im SFB 231 (22.-23. Februar 1996) | 1997 | 0 |
| 6 | Der Codex im Gebrauch | 1996 | 1 |
| 7 | Der Codex im Gebrauch : Akten des Internationalen Kolloquiums, 11.-13. Juni 1992 | 1996 | 1 |
| 8 | Kommunales Schriftgut in Oberitalien : Formen, Funktionen, Überlieferung | 1995 | 1 |
| 9 | 1994 | 0 | |
| 10 | Pragmatische Schriftlichkeit im Mittelalter : Erscheinungsformen und Entwicklungsstufen | 1992 | 13 |
| 11 | Gli inizi del comune in Lombardia: Limiti della documentazione e metodi di ricerca | 1989 | 0 |
| 12 | Zwischen regionaler Begrenzung und universalem Horizont : Deutschland im Imperium der Salier und Staufer, 1024 bis 1250 | 1986 | 4 |
| 13 | Heinrich I. und Otto der Grosse : Neubeginn auf karolingischem Erbe | 1985 | 1 |
| 14 | 1982 | 4 | |
| 15 | 1976 | 4 | |
| 16 | Vescovi, conti e sovrani nella crisi del Regno Italico: Ricerche sull'aristocrazia carolingia in Italia III | 1971 | 3 |
| 17 | Geschichte der Franken bis zur Mitte des 6. Jahrhunderts | 1971 | 3 |
| 18 | 1967 | 2 | |
| 19 | Consors regni: Un problema carolingio | 1965 | 2 |
| 20 | La Bibbia nell'alto medioevo | 1964 | 2 |
About Hagen Keller
Hagen Keller is a scholar working on Classics, History and Archeology, having authored 48 papers that have together received 100 indexed citations. Recurring topics across this work include Historical, Literary, and Cultural Studies (17 papers), Byzantine Studies and History (10 papers), Historical and Archaeological Studies (8 papers), Historical and Religious Studies of Rome (7 papers), Medieval European History and Architecture (6 papers), Medieval Literature and History (5 papers), Classical Studies and Legal History (4 papers) and European Political History Analysis (4 papers). The work is most often cited by research in Classics (61 citations), History (57 citations) and History and Philosophy of Science (7 citations). Hagen Keller has collaborated with scholars based in Germany and France. Frequent co-authors include Gerd Althoff, Christel Meier, Yves Sintomer and Bernard S. Bachrach. Their work appears in journals such as The American Historical Review, Medical Microbiology and Immunology and Revue française de science politique.
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.