Karl G. Grell

988 total citations
40 papers, 596 citations indexed

About

Karl G. Grell is a scholar working on Molecular Biology, Biomaterials and Oceanography. According to data from OpenAlex, Karl G. Grell has authored 40 papers receiving a total of 596 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Molecular Biology, 11 papers in Biomaterials and 10 papers in Oceanography. Recurrent topics in Karl G. Grell's work include Protist diversity and phylogeny (14 papers), Diatoms and Algae Research (11 papers) and Marine Biology and Ecology Research (6 papers). Karl G. Grell is often cited by papers focused on Protist diversity and phylogeny (14 papers), Diatoms and Algae Research (11 papers) and Marine Biology and Ecology Research (6 papers). Karl G. Grell collaborates with scholars based in Germany, Jamaica and Japan. Karl G. Grell's co-authors include August Ruthmann, Christian F. Bardele and G. Czihak and has published in prestigious journals such as Cell and Tissue Research, Chromosoma and Die Naturwissenschaften.

In The Last Decade

Karl G. Grell

40 papers receiving 551 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Karl G. Grell Germany 14 347 240 146 133 61 40 596
E. E. Chao Canada 11 491 1.4× 392 1.6× 170 1.2× 82 0.6× 54 0.9× 11 755
Vance Tartar United States 16 466 1.3× 148 0.6× 53 0.4× 40 0.3× 43 0.7× 28 634
Ch. Jeuniaux Belgium 15 157 0.5× 253 1.1× 57 0.4× 54 0.4× 36 0.6× 58 661
Gary W. Grimes United States 18 699 2.0× 231 1.0× 79 0.5× 28 0.2× 78 1.3× 28 813
A Adoutte France 15 906 2.6× 283 1.2× 77 0.5× 61 0.5× 159 2.6× 23 1.1k
August Ruthmann Germany 19 374 1.1× 150 0.6× 64 0.4× 191 1.4× 122 2.0× 39 718
Earl D. Hanson United States 15 320 0.9× 162 0.7× 84 0.6× 107 0.8× 71 1.2× 37 620
Marlene W. Karakashian United States 12 388 1.1× 257 1.1× 146 1.0× 26 0.2× 186 3.0× 15 696
Eugene B. Small United States 18 687 2.0× 703 2.9× 310 2.1× 36 0.3× 77 1.3× 39 1.1k
Eugene N. Kozloff United States 14 201 0.6× 410 1.7× 359 2.5× 66 0.5× 38 0.6× 66 787

Countries citing papers authored by Karl G. Grell

Since Specialization
Citations

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

Fields of papers citing papers by Karl G. Grell

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Karl G. Grell. 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 Karl G. Grell. The network helps show where Karl G. Grell may publish in the future.

Co-authorship network of co-authors of Karl G. Grell

This figure shows the co-authorship network connecting the top 25 collaborators of Karl G. Grell. A scholar is included among the top collaborators of Karl G. Grell 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 Karl G. Grell. Karl G. Grell 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.
Grell, Karl G.. (1994). Decomposers of the Diatom Lawn and Reticulosphaera. Archiv für Protistenkunde. 144(4). 343–349. 4 indexed citations
2.
Grell, Karl G.. (1994). Reticulamoeba gemmipara n. gen., n. sp., an “Amoebaflagellate” with Reticulopodia and Zoosporogenesis. Archiv für Protistenkunde. 144(1). 55–61. 9 indexed citations
3.
Grell, Karl G.. (1992). Supplementary Observations on Thalassomyxa jamaicensis Grell. Archiv für Protistenkunde. 142(3-4). 213–217. 3 indexed citations
4.
Grell, Karl G., et al.. (1991). The ultrastructure of the plasmodial protist Leucodictyon marinum Grell. European Journal of Protistology. 27(2). 168–177. 13 indexed citations
5.
6.
Grell, Karl G., et al.. (1990). The ultrastructure of Reticulosphaera socialis grell (Heterokontophyta). European Journal of Protistology. 26(1). 37–54. 25 indexed citations
7.
Grell, Karl G.. (1990). Some Light Microscope Observations on Chlorarachnion reptansGeitler. Archiv für Protistenkunde. 138(4). 271–290. 18 indexed citations
8.
Grell, Karl G.. (1989). The life-cycle of the marine protist Reticulosphaera socialis grell. Archiv für Protistenkunde. 137(3). 177–197. 14 indexed citations
9.
Grell, Karl G., et al.. (1974). Elektronenmikroskopische beobachtungen über das wachstum der eizelle und die bildung der „befruchtungsmembran” von Trichoplax adhaerens F. E. Schulze (Placozoa). Zeitschrift für Morphologie der Tiere. 79(4). 295–310. 16 indexed citations
10.
Grell, Karl G.. (1974). Vom Einzeller zum Vielzeller Hundert Jahre Gastraea‐Theorie. Biologie in unserer Zeit. 4(3). 65–71. 10 indexed citations
11.
Grell, Karl G.. (1973). Protozoology. 116 indexed citations
12.
Grell, Karl G.. (1968). Protozoologie. 46 indexed citations
13.
Grell, Karl G., et al.. (1966). Notizen: Die Zellhülle von Paramoeba eilhardi Schaudinn. Zeitschrift für Naturforschung B. 21(6). 600–601. 21 indexed citations
14.
Grell, Karl G.. (1965). Eine neue Familie der Am�ben aus dem Lebensraum der Riffkorallen. Die Naturwissenschaften. 52(15). 459–460. 1 indexed citations
15.
Ruthmann, August & Karl G. Grell. (1964). Die Feinstruktur des intracapsul�ren Cytoplasmas bei dem Radiolar Aulacantha scolymantha. Cell and Tissue Research. 63(1). 97–119. 2 indexed citations
16.
Grell, Karl G.. (1960). Notizen: Nachweis der sexuellen Differenzierung bei Patellina corrugata durch Teilbildanalyse eines Films. Zeitschrift für Naturforschung B. 15(4). 270–270. 1 indexed citations
17.
Grell, Karl G.. (1958). Studien zum Differenzierungsproblem an Foraminiferen. Die Naturwissenschaften. 45(2). 25–32. 11 indexed citations
18.
Grell, Karl G.. (1956). Protozoologie. 34 indexed citations
19.
Grell, Karl G.. (1956). Notizen: Über die Elimination somatischer Kerne bei heterokaryotischen Foraminiferen. Zeitschrift für Naturforschung B. 11(12). 759–761. 6 indexed citations
20.
Grell, Karl G.. (1951). Die Paarungsreaktion von Stylonychia mytilus Müller. Zeitschrift für Naturforschung B. 6(1). 45–47. 14 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.

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2026