This map shows the geographic impact of Jean Hanson'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 Jean Hanson with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Jean Hanson more than expected).
This network shows the impact of papers produced by Jean Hanson. 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 Jean Hanson. The network helps show where Jean Hanson may publish in the future.
Co-authorship network of co-authors of Jean Hanson
This figure shows the co-authorship network connecting the top 25 collaborators of Jean Hanson.
A scholar is included among the top collaborators of Jean Hanson 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 Jean Hanson. Jean Hanson is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Hanson, Jean, et al.. (2014). Practical applications of in-vitro techniques to forage germplasm. CGSPace A Repository of Agricultural Research Outputs (Consultative Group for International Agricultural Research).
4.
Hanson, Jean & J. R. Lazier. (2014). Forage germplasm at the International Livestock Centre for Africa. CGSPace A Repository of Agricultural Research Outputs (Consultative Group for International Agricultural Research).
5.
Johnson, Dale, et al.. (2014). Sustainability of management-intensive grazing dairy farms versus conventional confinement dairy farms.. 1424–1431.2 indexed citations
Hanson, Jean, et al.. (2012). Forage seed research and development in Ethiopia. CGSPace A Repository of Agricultural Research Outputs (Consultative Group for International Agricultural Research).14 indexed citations
8.
Hanson, Jean, Edward D. Goldberg, Imke Thormann, et al.. (2010). Knowledge Sharing on Best Practices for Managing Crop Genebanks. Open Access Repository of ICRISAT (International Crops Research Institute for the Semi-Arid Tropics). 3(2). 101–106.4 indexed citations
9.
Wouw, Mark van de, et al.. (2009). Agro-morphological characterisation of a collection of Cynodon.. Tropical grasslands. 43(3). 151–161.4 indexed citations
10.
Wouw, Mark van de, et al.. (2008). Characterisation of a collection of buffel grass (Cenchrus ciliaris). Tropical grasslands.16 indexed citations
11.
Wouw, Mark van de, et al.. (2008). Characterisation of a collection of perennial Panicum species. Tropical grasslands.15 indexed citations
12.
Wouw, Mark van de, et al.. (1999). Morphological and agronomic characterisation of a collection of Napier grass (Pennisetum purpureum) and P. purpureum × P. glaucum. Tropical grasslands.23 indexed citations
13.
Hanson, Jean, et al.. (1998). Effects of sulphuric acid and hot water treatments on seedborne fungi and germination of Stylosanthes hamata, S-guianensis and S-scabra. Lanzhou University Institutional Repository.2 indexed citations
14.
Nan, Zhibiao & Jean Hanson. (1998). Detection of seedborne fungi in Stylosanthes guianensis, S. hamata, and S. scabra.. Seed Science and Technology. 26(2). 333–345.1 indexed citations
15.
Hanson, Jean, et al.. (1998). Alfalfa mosaic virus: Occurrence and variation among isolates from forage legumes in Ethiopia. Tropical grasslands. 32(2). 118–123.3 indexed citations
16.
Hanson, Jean & Brigitte L. Maass. (1997). Conservation of tropical forage genetic resources. CGSPace A Repository of Agricultural Research Outputs (Consultative Group for International Agricultural Research).3 indexed citations
17.
Hanson, Jean, et al.. (1994). Genetic resources of Stylosanthes species. CGSPace A Repository of Agricultural Research Outputs (Consultative Group for International Agricultural Research).1 indexed citations
18.
Hanson, Jean. (1994). A rich trove of sub Saharan Africa's forage genetic resources conserved at ILCA. Diversity.1 indexed citations
19.
Larbi, Asamoah, et al.. (1992). Agronomic evaluation of Neonotonia wightii, Stylosanthes scabra and S. guianensis accessions in Ethiopia. Tropical grasslands.4 indexed citations
20.
Engels, Johannes, Dawit Abebe, H. Doggett, et al.. (1991). Plant Genetic Resources of Ethiopia. Cambridge University Press eBooks.97 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.