This map shows the geographic impact of Helmut Döhler'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 Helmut Döhler with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Helmut Döhler more than expected).
This network shows the impact of papers produced by Helmut Döhler. 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 Helmut Döhler. The network helps show where Helmut Döhler may publish in the future.
Co-authorship network of co-authors of Helmut Döhler
This figure shows the co-authorship network connecting the top 25 collaborators of Helmut Döhler.
A scholar is included among the top collaborators of Helmut Döhler 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 Helmut Döhler. Helmut Döhler is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Döhler, Helmut, et al.. (2013). Ammonia emissions from field applied digestates and related cross media effects..1 indexed citations
9.
Döhler, Helmut, et al.. (2012). Evaluation of policy measures and methods to reduce diffuse water pollution. Publication Server of the Wuppertal Institute (Wuppertal Institute).1 indexed citations
Döhler, Helmut, et al.. (2011). The economics of sugar beets in biogas production.. Landtechnik. 66(4). 250–253.2 indexed citations
12.
Dämmgen, Ulrich, et al.. (2010). An improved data base for the description of dairy cows in the German agricultural emission model GAS-EM. 60(2). 87–100.3 indexed citations
13.
Dämmgen, Ulrich, et al.. (2010). Derivation of TAN related ammonia emission factors in pig production. 60(4). 241–248.2 indexed citations
14.
Doluschitz, Reiner, et al.. (2009). Nachhaltigkeitsbewertungssysteme - Allgemeine Anforderungen und vergleichende Beurteilung der Systeme RISE, KSNL und DLG-Zertifizierungssystem für nachhaltige Landwirtschaft. OpenAgrar.2 indexed citations
15.
Doluschitz, Reiner, et al.. (2009). Assessment of sustainability - common requirements and comparative evaluation of the systems RISE, KSNL and the "DLG certification system for sustainable agriculture".. 87(3). 402–427.2 indexed citations
16.
Döhler, Helmut, et al.. (2009). The potential of methods for assessing sustainability of farms.. Landtechnik. 64(6). 406–408.
Döhler, Helmut. (2005). Key data for agriculture..1 indexed citations
19.
Dämmgen, Ulrich, et al.. (2002). GAS-EM - ein Kalkulationsprogramm für Emissionen aus der Landwirtschaft. Landbauforschung Völkenrode : FAL agricultural research. 52(1). 19–42.4 indexed citations
20.
Döhler, Helmut, et al.. (1994). Kompost: was Sie jetzt wissen müssen. 109(12). 18–21.1 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.