This map shows the geographic impact of P. Kessler'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 P. Kessler with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites P. Kessler more than expected).
This network shows the impact of papers produced by P. Kessler. 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 P. Kessler. The network helps show where P. Kessler may publish in the future.
Co-authorship network of co-authors of P. Kessler
This figure shows the co-authorship network connecting the top 25 collaborators of P. Kessler.
A scholar is included among the top collaborators of P. Kessler 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 P. Kessler. P. Kessler is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Baas, Pieter, et al.. (2011). HUMAN AND ENVIRONMENTAL INFLUENCES ON PLANT DIVERSITY AND COMPOSITION IN BEN EN NATIONAL PARK, VIETNAM. JOURNAL OF TROPICAL FOREST SCIENCE. 22(3). 328–337.16 indexed citations
Kessler, P., et al.. (2002). Checklist of woody plants of Sulawesi, Indonesia. Data Archiving and Networked Services (DANS). 14(1). 1–160.50 indexed citations
12.
Kessler, P., et al.. (2001). Additions to Orophea subgenus Sphaerocarpon (Annonaceae): revision and transfer of Mezzettiopsis. Blumea - Biodiversity Evolution and Biogeography of Plants. 46(1). 141–163.10 indexed citations
13.
Mols, Johan B. & P. Kessler. (2000). Revision of the genus Phaeanthus (Annonaceae).. Blumea - Biodiversity Evolution and Biogeography of Plants. 45(1). 205–233.13 indexed citations
14.
Kessler, P.. (1996). Goniothalamus majestatis, a new species of annonaceae from Sulawesi, Indonesia. Blumea - Biodiversity Evolution and Biogeography of Plants. 41(1). 27–28.3 indexed citations
15.
Kessler, P.. (1990). Studies on the tribe Saccopetaleae (Annonaceae) — II. Additions to the genus Orophea Blume. Blumea - Biodiversity Evolution and Biogeography of Plants. 34(2). 505–516.4 indexed citations
16.
Heijden, E. van der & P. Kessler. (1990). Studies on the tribe Saccopetaleae (Annonaceae) - III. Revision of the genus Mezzettia Beccari.. Blumea - Biodiversity Evolution and Biogeography of Plants. 35(1). 217–228.11 indexed citations
Kessler, P.. (1988). Revision der Gattung Orophea Blume (Annonaceae). Blumea - Biodiversity Evolution and Biogeography of Plants. 33(1). 1–80.24 indexed citations
19.
Kessler, P.. (1988). Studies on the tribe Saccopetaleae (Annonaceae) - I. Revision of the genus Platymitra Boerlage. Blumea - Biodiversity Evolution and Biogeography of Plants. 33(2). 471–476.6 indexed citations
20.
Kessler, P., et al.. (1980). γγ [Gamma gamma] collisions : proceedings of the international workshop (Journées d'etudes internationales), held at Amiens, France, April 8-12, 1980. Springer eBooks.
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.