This map shows the geographic impact of R. E. Schwarz'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. E. Schwarz with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites R. E. Schwarz more than expected).
This network shows the impact of papers produced by R. E. Schwarz. 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. E. Schwarz. The network helps show where R. E. Schwarz may publish in the future.
Co-authorship network of co-authors of R. E. Schwarz
This figure shows the co-authorship network connecting the top 25 collaborators of R. E. Schwarz.
A scholar is included among the top collaborators of R. E. Schwarz 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. E. Schwarz. R. E. Schwarz 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.
Schweingruber, Fritz Hans, et al.. (2007). Dendrochronology of herbs and bushes in forefield of the Morteratsch glacier. 20. 5–17.5 indexed citations
Schwarz, R. E.. (1972). Strains of the Greening Pathogen. International Organization of Citrus Virologists Conference Proceedings (1957-2010). 5(5).3 indexed citations
Schwarz, R. E.. (1970). Seasonal graft-transmissibility and quantification of gentisoyl glucoside marker of citrus greening in the bark of infected trees.. Phytophylactica. 2(2). 115–120.7 indexed citations
10.
Schwarz, R. E., A. P. D. Mcclean, & H. D. Catling. (1970). The spread of greening disease by citrus psylla in South Africa.. Phytophylactica. 2(1). 59–60.6 indexed citations
11.
Schwarz, R. E.. (1970). A multiple sprouting disease of citrus.. The Plant disease reporter. 54(12). 1003–1007.
12.
Schwarz, R. E., et al.. (1970). Centrifugal extraction of phenolic markers for indexing citrus greening and avocado sun-blotch diseases.. Phytophylactica. 2(1). 65–68.1 indexed citations
13.
Schwarz, R. E.. (1970). Comparative indexing of the annual and seasonal incidence of greening in Sweet Orange fruits by external symptoms and by the albedo fluorescence test.. Phytophylactica. 2(1). 1–15.1 indexed citations
14.
Schwarz, R. E., et al.. (1970). Citrus-greening and the citrus Psyllid Trioza erytreae - a temperature-dependent agent-vector complex.. 77(9). 490–493.
15.
Mcclean, A. P. D. & R. E. Schwarz. (1970). Greening or blotchy-mottle disease of Citrus.. Phytophylactica. 2(3). 177–194.96 indexed citations
16.
Schwarz, R. E., et al.. (1970). Greening: a menace to our citrus industry?.2 indexed citations
Schwarz, R. E.. (1967). Results of a greening survey on Sweet Orange in the major Citrus-growing areas of the Republic of South Africa.. 10(2). 471–476.16 indexed citations
20.
Schwarz, R. E.. (1965). Aphid-borne virus diseases of citrus and their vectors in South Africa. B. Flight activity of citrus aphids. 8(4). 931–940.13 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.