Johannes Ullrich

7.2k citations
145 papers · 3.3k indexed · h-index 30
Topics
Social and Intergroup Psychology (28 papers)Biochemical Acid Research Studies (21 papers)Amino Acid Enzymes and Metabolism (19 papers)

In The Last Decade

Johannes Ullrich

136 papers receiving 3.1k citations

Peers

Johannes Ullrich
Comparison fields: 5 of 175
  • Sociology and Political Science 999
  • Social Psychology 781
  • Organizational Behavior and Human Resource Management 731
  • Biochemistry 315
  • Strategy and Management 277
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Countries citing papers authored by Johannes Ullrich

Since Specialization
Citations

This map shows the geographic impact of Johannes Ullrich'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 Johannes Ullrich with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Johannes Ullrich more than expected).

Fields of papers citing papers by Johannes Ullrich

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Johannes Ullrich. 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 Johannes Ullrich. The network helps show where Johannes Ullrich may publish in the future.

Co-authorship network of co-authors of Johannes Ullrich

This figure shows the co-authorship network connecting the top 25 collaborators of Johannes Ullrich. A scholar is included among the top collaborators of Johannes Ullrich 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 Johannes Ullrich. Johannes Ullrich is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
#WorkIndexed citations
1 1
2 0
3 0
4 2
5 1
6 1
7 20
8 39
9 7
10 5
11 10
12 7
13 9
14 74
15
Highly predictive blacklisting
62
16
A new service for increasing the effectiveness of network address blacklists
1
17
Biochemistry and physiology of thiamin diphosphate enzymes : proceedings of the International Meeting on the Function of Thiamin Diphosphate Enzymes, held in Blaubeuren, October 1990
5
18
The furanocoumarins of heracleum persicum l
20
19
On the problem of Potato leaf infection by direct germination of sporangia of P. infestans.
1
20
[Kinetics of the 2'-proton exchange in thiamine pyrophosphate].
14

About Johannes Ullrich

Johannes Ullrich is a scholar working on Biochemistry, Social Psychology and Applied Psychology, having authored 145 papers that have together received 3.3k indexed citations. Recurring topics across this work include Social and Intergroup Psychology (28 papers), Biochemical Acid Research Studies (21 papers) and Amino Acid Enzymes and Metabolism (19 papers). The work is most often cited by research in Organizational Behavior and Human Resource Management (731 citations), Biochemistry (315 citations) and Social Psychology (781 citations). Johannes Ullrich has collaborated with scholars based in Germany, Switzerland and United States. Frequent co-authors include Rolf van Dick, Nurit Shnabel, Jan Wieseke, Paul Barford, Vinod Yegneswaran, Oliver Christ, J. Christopher Cohrs, Patrick Tissington, Arie Nadler and Bernhard Breit. Their work appears in journals such as Journal of Personality and Social Psychology, SHILAP Revista de lepidopterología and Journal of Applied Physics.

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.

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