This map shows the geographic impact of Lothar Frese'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 Lothar Frese with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Lothar Frese more than expected).
This network shows the impact of papers produced by Lothar Frese. 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 Lothar Frese. The network helps show where Lothar Frese may publish in the future.
Co-authorship network of co-authors of Lothar Frese
This figure shows the co-authorship network connecting the top 25 collaborators of Lothar Frese.
A scholar is included among the top collaborators of Lothar Frese 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 Lothar Frese. Lothar Frese is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Frese, Lothar, et al.. (2020). Designation of genetic reserves for wild celery species in Germany. 2020(12). 4–7.1 indexed citations
3.
Frese, Lothar, F. Branca, B. V. Ford-Lloyd, et al.. (2019). Genetic reserve conservation of European crop wild relative and landrace diversity. Ktisis at Cyprus University of Technology (Cyprus University of Technology).
Asher, M. J. C., et al.. (2001). Wild Beta species as a source of resistance to sugar-beet pests and diseases. International sugar journal. 103(1234). 141–152.13 indexed citations
Letschert, Jonas, W. Lange, Lothar Frese, & R.G. van den Berg. (1994). Taxonomy of Beta Section Beta. Journal of Sugarbeet Research. 31(1&2). 69–85.27 indexed citations
14.
Frese, Lothar. (1993). Yield potential and utilization possibilities of sugar crops.. 43(1). 12–16.1 indexed citations
Frese, Lothar, et al.. (1990). New wild beet genetic resources from Portugal and Spain.. 115(11). 950–956.6 indexed citations
18.
Frese, Lothar, et al.. (1987). Entwicklung von Basispopulationen bei Wurzel- und Knollenfrüchten zur Erzeugung von Zucker und Stärke als Industriegrundstoffe. Landbauforschung Völkenrode : FAL agricultural research. 37(4). 213–218.2 indexed citations
Frese, Lothar & Wilhelm Weber. (1984). Eine Methode zur Unterscheidung von Zuchtmaterial der Möhre mit partieller Resistenz gegen Meloidogyne hapla. 91(4). 396–403.1 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.