Countries citing papers authored by Walter Ullmann
Since
Specialization
Citations
This map shows the geographic impact of Walter Ullmann'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 Walter Ullmann with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Walter Ullmann more than expected).
This network shows the impact of papers produced by Walter Ullmann. 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 Walter Ullmann. The network helps show where Walter Ullmann may publish in the future.
Co-authorship network of co-authors of Walter Ullmann
This figure shows the co-authorship network connecting the top 25 collaborators of Walter Ullmann.
A scholar is included among the top collaborators of Walter Ullmann based on the total number of
citations received by their joint publications. Widths of edges
represent the number of papers authors have co-authored together.
Node borders
signify the number of papers an author published with Walter Ullmann. Walter Ullmann is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Ullmann, Walter. (1983). Dykmans (Marc). Le cérémonial papal de la fin du Moyen-Âge à la Renaissance, tome II : De Rome en Avignon ou Le cérémonial de Jacques Stefaneschi. Revue belge de philologie et d histoire. 61(2). 405–409.
6.
Ullmann, Walter. (1981). Gelasius I. (492-496) : das Papsttum an der Wende der Spätantike zum Mittelalter.2 indexed citations
7.
Ullmann, Walter. (1980). Jurisprudence in the Middle Ages. Medical Entomology and Zoology.2 indexed citations
8.
Ullmann, Walter, et al.. (1977). Ex aequo et bono : Willibald M. Plöchl zum 70. Geburtstag.
Ullmann, Walter, et al.. (1975). Il Papato nel Medioevo.
11.
Ullmann, Walter. (1975). Duchesne (Louis), Scripta Minora: Etudes de topographie romaine et de géographie ecclésiastique. Revue belge de philologie et d histoire. 53(4). 1287–1289.1 indexed citations
12.
Ullmann, Walter, et al.. (1974). Individuum und Gesellschaft im Mittelalter. Bayerische Staatsbibliothek.2 indexed citations
13.
Ullmann, Walter, et al.. (1974). Individuo e società nel Medioevo. Laterza eBooks.1 indexed citations
14.
Ullmann, Walter, et al.. (1973). [Chronic NASDCl-negative eosinophilic leukemia with cardiac infarction].. PubMed. 358(3). 265–71.1 indexed citations
15.
Ullmann, Walter, et al.. (1971). Principios de gobierno y politica en la edad media. Virtual Defense Library (Ministerio de Defensa).5 indexed citations
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.