This map shows the geographic impact of R. M. Hassan'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 R. M. Hassan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites R. M. Hassan more than expected).
This network shows the impact of papers produced by R. M. Hassan. 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 R. M. Hassan. The network helps show where R. M. Hassan may publish in the future.
Co-authorship network of co-authors of R. M. Hassan
This figure shows the co-authorship network connecting the top 25 collaborators of R. M. Hassan.
A scholar is included among the top collaborators of R. M. Hassan 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 R. M. Hassan. R. M. Hassan 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
1.
Yirga, Chilot & R. M. Hassan. (2013). Determinants of inorganic fertiliser use in the mixed crop-livestock farming systems of central highlands of Ethiopia.. African Crop Science Journal. 21. 669–681.13 indexed citations
Benhin, James & R. M. Hassan. (2009). A Dynamic Analysis of Trade and Biodiversity Loss in Semi-arid Southern Africa: The Role of Grazing Activities. 11. 31–48.1 indexed citations
4.
Yirga, Chilot & R. M. Hassan. (2008). Multinomial logit analysis of farmers' choice between short and long-term soil fertility management practices in the central highlands of Ethiopia. 7(1). 83–105.9 indexed citations
5.
Farolfi, Stefano, et al.. (2004). Determinants of quality and quantity values of water for domestic uses in the Steelpoort sub-basin: a contingent valuation approach.. Agritrop (Cirad). 167–188.2 indexed citations
Hassan, R. M., et al.. (1998). Availability and effectiveness of agricultural extension services for maize farmers in Kenya.. 175–188.5 indexed citations
12.
Hassan, R. M., et al.. (1998). Combining geo-referenced survey data with agroclimatic attributes to characterize maize production systems in Kenya.. 43–68.20 indexed citations
13.
Hassan, R. M.. (1998). Maize Technology Development and Transfer : A GIS Application for Research Planning in Kenya. Medical Entomology and Zoology.76 indexed citations
14.
Lynam, John & R. M. Hassan. (1998). A new approach to securing sustained growth in Kenya's maize sector.. 3–14.11 indexed citations
15.
Hassan, R. M., et al.. (1998). The spatial sampling frame and design for farmer and village surveys.. 27–41.9 indexed citations
16.
Mills, Bradford F., R. M. Hassan, & Peter Mwangi. (1998). Estimating potential benefits from research and setting research priorities for maize in Kenya.. 89–104.1 indexed citations
Hassan, R. M., et al.. (1996). Integrating farmers' information with geographic information systems for targeting of maize research in Kenya. African Crop Science Journal. 4(1). 1–9.4 indexed citations
19.
Hassan, R. M., et al.. (1993). Economic policy and technology determinants of the comparative advantage of wheat production in Sudan. CIMMYT eBooks.5 indexed citations
20.
Hassan, R. M., W. Mwangi, & Daniel David Karanja. (1993). Wheat supply in Kenya: Production technologies, sources of inefficiency, and potential for productivity growth. CIMMYT eBooks.7 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.