C. J. van Rooyen

52 papers receiving 402 citations

Peers

C. J. van Rooyen
Comparison fields: 5 of 62
  • General Agricultural and Biological Sciences 165
  • Soil Science 122
  • General Health Professions 105
  • Strategy and Management 78
  • Economics and Econometrics 72
Replace Stephen Greenberg with:
Stephen Greenberg United States
Johan van Rooyen South Africa
Herman D. van Schalkwyk South Africa
Zerihun Gudeta Alemu South Africa
Mylène Kherallah United States
M. Ataman Aksoy United States
Alberto Valdés Chile
David Hallam United Kingdom
Micah B. Masuku Eswatini
Ben Senauer United States
C. J. van Rooyen relative to Stephen Greenberg United States Stephen Greenberg's profile →
Citations per field
00.5×1.7×
Stephen Greenberg · 1×
Citations per year

Countries citing papers authored by C. J. van Rooyen

Since Specialization
Citations

This map shows the geographic impact of C. J. van Rooyen'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 C. J. van Rooyen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites C. J. van Rooyen more than expected).

Fields of papers citing papers by C. J. van Rooyen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by C. J. van Rooyen. 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 C. J. van Rooyen. The network helps show where C. J. van Rooyen may publish in the future.

Co-authorship network of co-authors of C. J. van Rooyen

This figure shows the co-authorship network connecting the top 25 collaborators of C. J. van Rooyen. A scholar is included among the top collaborators of C. J. van Rooyen 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 C. J. van Rooyen. C. J. van Rooyen 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
#WorkIndexed citations
1 2
2 3
3 9
4 139
5
MEASUREMENT AND ANALYSIS OF THE TRENDS IN COMPETITIVE PERFORMANCE: SOUTH AFRICAN AGRIBUSINESS DURING THE 2000’s
3
6
Towards redesigning the Agricultural extension service in South Africa: views and proposals of extensionists in the Eastern Cape
11
7
Towards designing a new agricultural extension service for the Eastern Cape Province: a perception analysis.
4
8 18
9 1
10 4
11 5
12 3
13 1
14 4
15 0
16 1
17 57
18 3
19 1
20 2

About C. J. van Rooyen

C. J. van Rooyen is a scholar working on Business and International Management, General Agricultural and Biological Sciences and Soil Science, having authored 55 papers that have together received 458 indexed citations. Recurring topics across this work include Agricultural Innovations and Practices (14 papers), Land Rights and Reforms (11 papers) and Global Trade and Competitiveness (7 papers). The work is most often cited by research in General Agricultural and Biological Sciences (165 citations), Business and International Management (38 citations) and Soil Science (122 citations). C. J. van Rooyen has collaborated with scholars based in South Africa, Italy and Belgium. Frequent co-authors include Nick Vink, Marijke D’Haese, Luc D’Haese, Hettie C. Schönfeldt, Nathalie De Cock, Johann F. Kirsten, Herman D. van Schalkwyk, Micah B. Masuku, Sylvain Perret and C. Laurent. Their work appears in journals such as Food Security, Journal of International Development and Development Southern Africa.

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.

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2026