This map shows the geographic impact of G.J. Bollen'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 G.J. Bollen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites G.J. Bollen more than expected).
This network shows the impact of papers produced by G.J. Bollen. 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 G.J. Bollen. The network helps show where G.J. Bollen may publish in the future.
Co-authorship network of co-authors of G.J. Bollen
This figure shows the co-authorship network connecting the top 25 collaborators of G.J. Bollen.
A scholar is included among the top collaborators of G.J. Bollen 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 G.J. Bollen. G.J. Bollen is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Platt, H. W. & G.J. Bollen. (1993). Use of tissue culture potato plantlets for investigations of diseases.. Plant Disease. 77. 112–113.1 indexed citations
8.
Bollen, G.J.. (1993). Factors involved in inactivation of plant pathogens during composting of crop residues.. Socio-Environmental Systems Modeling.35 indexed citations
Bollen, G.J., et al.. (1991). Inactivering van pathogene schimmels en fungiciden tijdens compostering van restanten van bolgewassen.. Socio-Environmental Systems Modeling. 22. 18–18.1 indexed citations
11.
Beemster, A. B. R., et al.. (1990). Biotic interactions and soil-borne diseases : proceedings of the first Conference of the European Foundation for Plant Pathology. Socio-Environmental Systems Modeling.1 indexed citations
12.
Vos, Jeroen, C.D. van Loon, & G.J. Bollen. (1989). Effects of crop rotation on potato production in the temperate zones : proceedings of the International Conference on Effects of Crop Rotation on Potato Production in the Temperate Zones, held August 14-19, 1988, Wageningen, The Netherlands. Kluwer Academic eBooks.2 indexed citations
13.
Bollen, G.J.. (1985). The fate of plant pathogens during composting of crop residues. Socio-Environmental Systems Modeling.24 indexed citations
14.
Bollen, G.J., et al.. (1983). De lotgevallen van pathogene schimmels in een composthoop. Socio-Environmental Systems Modeling. 14. 5–5.7 indexed citations
Bollen, G.J., et al.. (1978). Steamed potting soil as a source of Aspergillus fumigatus spores in the air of greenhouses. Socio-Environmental Systems Modeling.1 indexed citations
17.
Boerema, G. H. & G.J. Bollen. (1975). Conidiogenesis and conidial septation as differentiating criteria between Phoma and Ascochyta.. Persoonia - Molecular Phylogeny and Evolution of Fungi. 8(2). 111–144.67 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.