This map shows the geographic impact of Roland Oliver'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 Roland Oliver with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Roland Oliver more than expected).
This network shows the impact of papers produced by Roland Oliver. 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 Roland Oliver. The network helps show where Roland Oliver may publish in the future.
Co-authorship network of co-authors of Roland Oliver
This figure shows the co-authorship network connecting the top 25 collaborators of Roland Oliver.
A scholar is included among the top collaborators of Roland Oliver 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 Roland Oliver. Roland Oliver 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.
Oliver, Roland, et al.. (2020). Anaemia: A disease or symptom.. The Netherlands Journal of Medicine. 78(3). 104–110.30 indexed citations
Uzoigwe, Godfrey N., Roland Oliver, & J. D. Fage. (1978). A Short History of Africa. The International Journal of African Historical Studies. 11(1). 137–137.3 indexed citations
14.
Oliver, Roland, et al.. (1970). L'Afrique depuis 1800. Presses Universitaires de France eBooks.1 indexed citations
15.
Oliver, Roland, et al.. (1967). History of East Africa : the early period. Oxford University Press eBooks.2 indexed citations
16.
Oliver, Roland. (1967). The missionary factor in East Africa. Medical Entomology and Zoology.75 indexed citations
17.
Oliver, Roland. (1965). Africa in the days of exploration. Prentice Hall eBooks.5 indexed citations
18.
Oliver, Roland, et al.. (1962). A Short History of Africa. Geographical Journal. 128(4). 526–526.81 indexed citations
19.
Oliver, Roland. (1956). How Christian is Africa.3 indexed citations
20.
Oliver, Roland. (1951). Some factors in the British occupation of East Africa, 1884-1894. 15(1). 49–64.3 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.