This map shows the geographic impact of J. Hofker'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 J. Hofker with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites J. Hofker more than expected).
This network shows the impact of papers produced by J. Hofker. 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 J. Hofker. The network helps show where J. Hofker may publish in the future.
Co-authorship network of co-authors of J. Hofker
This figure shows the co-authorship network connecting the top 25 collaborators of J. Hofker.
A scholar is included among the top collaborators of J. Hofker 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 J. Hofker. J. Hofker is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Hofker, J.. (1980). The Foraminifera of the Saba Bank Expedition, 1972 (Cicar Cruises 34, 35). Data Archiving and Networked Services (DANS). 177(1). 1–73.3 indexed citations
3.
Hofker, J.. (1979). Rare and remarkable Foraminifera of the Caribbean Sea. Data Archiving and Networked Services (DANS). 58(1). 1–43.4 indexed citations
4.
Hofker, J.. (1978). Biological results of the Snellius expedition XXX : the foraminifera collected in 1929 and 1930 in the eastern part of the Indonesian Archipelago. Data Archiving and Networked Services (DANS). 161(1). 3–69.6 indexed citations
5.
Hofker, J.. (1976). Further studies on Caribbean Foraminifera. Data Archiving and Networked Services (DANS). 49(1). 1–256.28 indexed citations
6.
Hofker, J.. (1972). Foraminifera dentata : foraminifera of Santa Cruz and Thatch-Island, Virginia-Archipelago, West-Indies. Medical Entomology and Zoology.24 indexed citations
7.
Hofker, J.. (1971). The Foraminifera of Piscadera Bay, Curaçao. Data Archiving and Networked Services (DANS). 35(1). 1–62.15 indexed citations
Hofker, J.. (1969). Recent Foraminifera from Barbados. Data Archiving and Networked Services (DANS). 31(1). 1–158.12 indexed citations
10.
Hofker, J.. (1965). Some Foraminifera from the Aptian-Albian passage of Northern Spain. Data Archiving and Networked Services (DANS). 33(1). 183–189.6 indexed citations
11.
Hofker, J.. (1964). Foraminifera from the tidal zone in the Netherlands Antilles and other West Indian Islands. Data Archiving and Networked Services (DANS). 21(1). 1–119.16 indexed citations
12.
Hofker, J.. (1963). Studies on the Genus Orbitolina (Foraminiferida). Data Archiving and Networked Services (DANS). 29(1). 181–253.31 indexed citations
13.
Hofker, J.. (1962). Correlation of the Tuff Chalk of Maestricht (type Maestrichtian) with the Danske Kalk of Denmark (type Danian), the stratigraphic position of the type Montian, and the planktonic foraminiferal faunal break. Journal of Paleontology. 36(5). 1051–1089.11 indexed citations
Hofker, J.. (1960). The type localities of the Maestrichtian (Maestrichtian Chalk Tuff) and of the Montian (Tuffeau de Ciply, Calcaire de Mons, Lagunar, and Lacustre Montian). Journal of Paleontology. 34(3). 584–588.4 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.