Richard Harder

1.1k total citations
34 papers, 426 citations indexed

About

Richard Harder is a scholar working on Ecology, Evolution, Behavior and Systematics, Plant Science and Molecular Biology. According to data from OpenAlex, Richard Harder has authored 34 papers receiving a total of 426 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Ecology, Evolution, Behavior and Systematics, 14 papers in Plant Science and 12 papers in Molecular Biology. Recurrent topics in Richard Harder's work include Botany and Plant Ecology Studies (7 papers), Plant Reproductive Biology (7 papers) and Lichen and fungal ecology (6 papers). Richard Harder is often cited by papers focused on Botany and Plant Ecology Studies (7 papers), Plant Reproductive Biology (7 papers) and Lichen and fungal ecology (6 papers). Richard Harder collaborates with scholars based in Germany. Richard Harder's co-authors include William C. Smith, W. Koch, Walter Schumacher, D. E. Coombe, Peter M. Bell, F. Firbas, C. W. Tullock, D. D. Coffman and R. A. Carboni and has published in prestigious journals such as Journal of the American Chemical Society, The Journal of Organic Chemistry and Planta.

In The Last Decade

Richard Harder

33 papers receiving 347 citations

Peers

Richard Harder

PS

EEBS

MB

CB

OC

Sophie Guttes United States

E. Guttes United States

Leonard L. Saari United States

Ulrich Kull Germany

R. A. Luse United States

Siegfried Strugger Germany

M.E. Davies United Kingdom

Michele Bertazzini Italy

Dinkar D. Sabnis United Kingdom

N. J. Scully United States

Sophie Guttes United States

Richard Harder

119 ×0.5

PS

157 ×1.1

EEBS

247 ×2.4

MB

56 ×1.1

CB

137 ×3.2

OC

Citations per year, relative to Richard Harder Richard Harder (= 1×) peers Sophie Guttes

Countries citing papers authored by Richard Harder

Since Specialization

Citations

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

Fields of papers citing papers by Richard Harder

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Richard Harder. 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 Richard Harder. The network helps show where Richard Harder may publish in the future.

Co-authorship network of co-authors of Richard Harder

This figure shows the co-authorship network connecting the top 25 collaborators of Richard Harder. A scholar is included among the top collaborators of Richard Harder 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 Richard Harder. Richard Harder is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

1.

Harder, Richard. (1968). Axenische Kultur von Aponogeton distachyus L.. Planta. 82(3). 193–199. 2 indexed citations

2.

Harder, Richard, et al.. (1967). F�rderung der Entwicklung und des Bl�hens von Pinguicula Lusitanica Durch F�tterung in Axenischer Kultur. Planta. 73(2). 181–193. 11 indexed citations

3.

Harder, Richard, et al.. (1967). F�rderung carnivorer Utricularia-Arten durch Zucker in axenischen Licht- und Dunkel-kulturen. Die Naturwissenschaften. 54(20). 543–544. 3 indexed citations

4.

Harder, Richard, et al.. (1967). Verschiebung der Bl�tezeit der Herbstzeitlose. Planta. 76(2). 197–204. 1 indexed citations

5.

Harder, Richard, et al.. (1967). Bl�tenbildung von Pinguicula lusitanica in vitro durch F�tterung mit Pollen. Planta. 78(1). 72–78. 18 indexed citations

6.

Harder, Richard, et al.. (1967). Bl�tenbildung vonUtricularia stellaris ohne tierische Zusatznahrung. Die Naturwissenschaften. 54(2). 48–48. 5 indexed citations

7.

Harder, Richard, et al.. (1966). Chytridiales und einige andere niedere Phycomyceten aus Ozeanien. Archives of Microbiology. 53(2). 173–177. 3 indexed citations

8.

Harder, Richard. (1963). Blütenbildung durch tierische Zusatznahrung und andere Faktoren beiUtricularia exoleta R. Braun. Planta. 59(5). 459–471. 22 indexed citations

9.

Harder, Richard. (1963). Absolute reinkulturen von insektivoren. Die Naturwissenschaften. 50(18). 600–600. 3 indexed citations

10.

Harder, Richard, et al.. (1962). Notiz �ber das Vorkommen niederer Erdphycomyceten in der Antarktis. Archives of Microbiology. 41(1). 44–50. 8 indexed citations

11.

Harder, Richard, et al.. (1959). �ber niedere Erdphycomyceten Australiens. Archives of Microbiology. 32(2). 115–126. 11 indexed citations

12.

Harder, Richard, et al.. (1958). Über die wirkung von Gibberellin auf Entwicklung und Blütenbildung der Kurztagpflanze Kalanchoe blossfeldiana. Planta. 51(2). 201–222. 23 indexed citations

13.

Harder, Richard, et al.. (1958). �ber die Beeinflussung niederer Erdphycomyceten durch Flechten. Archives of Microbiology. 31(1). 82–86. 3 indexed citations

14.

Harder, Richard, et al.. (1958). Bl�tenbildung bei Bryophyllum durch Extrakt aus Bohnensamen. Die Naturwissenschaften. 45(2). 46–47. 19 indexed citations

15.

Harder, Richard, et al.. (1957). �ber Wachstumsversuche mit Rot-und Gr�nalgen (Porphyridium cruentum, Trailliella intricata, Chlorella pyrenoidosa) in verschiedenfarbigem, energiegleichen Licht. Archives of Microbiology. 28(2). 153–172. 7 indexed citations

16.

Harder, Richard, et al.. (1956). Bl�tenbildung von Bryophyllum durch Gibberellin. Die Naturwissenschaften. 43(20). 479–480. 36 indexed citations

17.

Harder, Richard, et al.. (1956). Einflu� des Gibberellins auf die Bl�tenbildung bei Kalanchoe blo�feldiana. Die Naturwissenschaften. 43(23). 544–544. 15 indexed citations

18.

Harder, Richard, et al.. (1955). �ber marine saprophytische Chytridiales und einige andere Pilze vom Meeresboden und Meeresstrand. Archives of Microbiology. 22(1). 87–114. 18 indexed citations

19.

Harder, Richard & W. Koch. (1954). Zur Frage nach der Identit�t von PedinomonasKorschikov und ChlorochytridionVischer. Archives of Microbiology. 20(4). 343–346. 2 indexed citations

20.

Harder, Richard & W. Koch. (1954). �ber die Plastidenfarbstoffe von Pedinomonas (Protochloridales). Archives of Microbiology. 21(1). 1–3. 5 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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