This map shows the geographic impact of Rolf Kehr'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 Rolf Kehr with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Rolf Kehr more than expected).
This network shows the impact of papers produced by Rolf Kehr. 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 Rolf Kehr. The network helps show where Rolf Kehr may publish in the future.
Co-authorship network of co-authors of Rolf Kehr
This figure shows the co-authorship network connecting the top 25 collaborators of Rolf Kehr.
A scholar is included among the top collaborators of Rolf Kehr 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 Rolf Kehr. Rolf Kehr is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Kehr, Rolf & H. Butin. (2017). Blattkrankheiten der Robinie. Federal Research Centre for Cultivated Plants (Julius Kühn-Institut). 48(10). 197–197.1 indexed citations
3.
Backhaus, G. F., et al.. (2015). Die Rosskastanien-Miniermotte ( Cameraria ohridella) - Biologie, Verbreitung und Gegenmassnahmen.. Federal Research Centre for Cultivated Plants (Julius Kühn-Institut).3 indexed citations
4.
Kehr, Rolf. (2015). Triebschäden an Mammutbaum (Sequoiadendron giganteum) durch Botryosphaeria dothidea auch in Deutschland nachgewiesen. Federal Research Centre for Cultivated Plants (Julius Kühn-Institut).1 indexed citations
5.
Butin, H. & Rolf Kehr. (2015). Zum Auftreten von Erysiphe flexuosa - Erreger einer neuen Mehltaukrankheit an Rosskastanie. Federal Research Centre for Cultivated Plants (Julius Kühn-Institut). 54(7). 185–185.
6.
Kehr, Rolf, et al.. (2015). Zur Gefährdung von Bäumen und Waldökosystemen durch eingeschleppte Krankheiten und Schädlinge. Nachrichtenblatt des Deutschen Pflanzenschutzdienstes. 56(10). 217–238.
7.
Kehr, Rolf, et al.. (2015). Die Esskastanie ( Castanea sativa Mill.) in Deutschland und ihre Gefährdung durch den Kastanienrindenkrebs ( Cryphonectria parasitica [Murr.] Barr). Federal Research Centre for Cultivated Plants (Julius Kühn-Institut). 53(3). 49–49.2 indexed citations
Butin, H. & Rolf Kehr. (2005). Blattdeformation bei Prunus laurocerasus nach Mehltaubefall. Federal Research Centre for Cultivated Plants (Julius Kühn-Institut). 57(7). 141–143.1 indexed citations
12.
Kehr, Rolf, et al.. (2004). First report of damage to Plane trees (Platanus × hispanica) in Germany caused by the fungus Splanchnonema platani.. Nachrichtenblatt des Deutschen Pflanzenschutzdienstes. 56(10). 245–251.1 indexed citations
13.
Kehr, Rolf, et al.. (2004). Erstmaliger Nachweis von Schäden an Platanen ( Platanus x hispanica ) durch den Pilz Splanchnonema platani in Deutschland. Federal Research Centre for Cultivated Plants (Julius Kühn-Institut). 56(10). 245–251.3 indexed citations
Kehr, Rolf, et al.. (1991). Schwerwiegende Schäden an Alteichen durch Baumfrevel. Federal Research Centre for Cultivated Plants (Julius Kühn-Institut). 43(6). 133–133.1 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.