Gerhard Klein

3.3k total citations · 1 hit paper
25 papers, 2.6k citations indexed

About

Gerhard Klein is a scholar working on Physiology, Biomedical Engineering and Surgery. According to data from OpenAlex, Gerhard Klein has authored 25 papers receiving a total of 2.6k indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Physiology, 6 papers in Biomedical Engineering and 3 papers in Surgery. Recurrent topics in Gerhard Klein's work include Membrane-based Ion Separation Techniques (6 papers), Clinical Laboratory Practices and Quality Control (4 papers) and Pancreatitis Pathology and Treatment (2 papers). Gerhard Klein is often cited by papers focused on Membrane-based Ion Separation Techniques (6 papers), Clinical Laboratory Practices and Quality Control (4 papers) and Pancreatitis Pathology and Treatment (2 papers). Gerhard Klein collaborates with scholars based in Germany, United States and Switzerland. Gerhard Klein's co-authors include Wolfgang Junge, Atef Halabi, Daniel Tondeur, Theodore Vermeulen, James C. Boyd, Josep M. Queraltó, Veli Kairisto, Joseph Henny, Mauro Panteghini and Ferruccio Ceriotti and has published in prestigious journals such as The Journal of Physical Chemistry, Physics Letters B and Clinical Chemistry.

In The Last Decade

Gerhard Klein

25 papers receiving 2.5k citations

Hit Papers

Principles of adsorption and adsorption processes 1985 2026 1998 2012 1985 500 1000 1.5k
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Principles of adsorption and adsorption processes
    1985 1.8k citations Gerhard Klein Reactive Polymers Ion Exchangers Sorbents profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Gerhard Klein Germany 13 743 659 443 377 348 25 2.6k
Hamid Modarress Iran 33 740 1.0× 1.3k 2.0× 853 1.9× 212 0.6× 247 0.7× 167 4.0k
E. Glueckauf Canada 20 529 0.7× 626 0.9× 328 0.7× 272 0.7× 411 1.2× 46 2.1k
Juan H. Vera Canada 38 480 0.6× 3.0k 4.5× 1.2k 2.7× 88 0.2× 464 1.3× 196 6.0k
Alan S. Michaels United States 43 1.7k 2.2× 1.6k 2.4× 966 2.2× 100 0.3× 379 1.1× 107 7.7k
Gilbert Gordon United States 36 186 0.3× 555 0.8× 715 1.6× 508 1.3× 317 0.9× 154 4.3k
Chunhong Zhang China 38 682 0.9× 664 1.0× 1.6k 3.5× 1.2k 3.3× 324 0.9× 280 5.0k
A. K. Covington United Kingdom 33 102 0.1× 600 0.9× 673 1.5× 231 0.6× 764 2.2× 176 4.9k
Hiroshi Takeuchi Japan 29 1.5k 2.0× 966 1.5× 395 0.9× 265 0.7× 226 0.6× 252 3.8k
David O. Cooney United States 22 374 0.5× 427 0.6× 232 0.5× 75 0.2× 110 0.3× 75 2.0k
John H. Yoe United States 24 252 0.3× 235 0.4× 398 0.9× 495 1.3× 347 1.0× 78 3.1k

Countries citing papers authored by Gerhard Klein

Since Specialization
Citations

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

Fields of papers citing papers by Gerhard Klein

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Gerhard Klein

This figure shows the co-authorship network connecting the top 25 collaborators of Gerhard Klein. A scholar is included among the top collaborators of Gerhard Klein 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 Gerhard Klein. Gerhard Klein 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.
Klein, Gerhard, et al.. (2009). Pediatric reference intervals determined in ambulatory and hospitalized children and juveniles. Clinica Chimica Acta. 406(1-2). 156–161. 22 indexed citations
2.
Ceriotti, Ferruccio, James C. Boyd, Gerhard Klein, et al.. (2008). Reference Intervals for Serum Creatinine Concentrations: Assessment of Available Data for Global Application. Clinical Chemistry. 54(3). 559–566. 182 indexed citations
3.
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5.
Klein, Gerhard & Wolfgang Junge. (2004). Creation of the necessary analytical quality for generating and using reference intervals. Clinical Chemistry and Laboratory Medicine (CCLM). 42(7). 851–7. 11 indexed citations
6.
7.
Klein, Gerhard, et al.. (1999). Berlin-Ecke Schönhauser--. Medical Entomology and Zoology. 1 indexed citations
8.
Baum, H, Siegmund Braun, W. Gerhardt, et al.. (1997). Multicenter evaluation of a second-generation assay for cardiac troponin T. Clinical Chemistry. 43(10). 1877–1884. 86 indexed citations
9.
Klein, Gerhard. (1997). Empfehlungen zur Durchführung bronchialer Provokationstests mit pharmakologischen Substanzen. Medizinische Klinik - Intensivmedizin und Notfallmedizin. 92(8). 458–463. 6 indexed citations
10.
Bijnens, Johan, Jean‐Marc Gérard, & Gerhard Klein. (1991). The KL-KS mass difference. Physics Letters B. 257(1-2). 191–195. 30 indexed citations
11.
Junge, Wolfgang, et al.. (1989). Evaluation of a new assay for pancreatic amylase: Performance characteristics and estimation of reference intervals. Clinical Biochemistry. 22(2). 109–114. 35 indexed citations
12.
Klein, Gerhard, et al.. (1988). A mathematical model of the cyclic operation of desalination-feedwater softening by ion-exchange with Fluidized-bed regeneration. Desalination. 69(2). 135–146. 2 indexed citations
13.
Klein, Gerhard, et al.. (1987). Zeolite a for selective calcium removal from brackish water?. Reactive Polymers Ion Exchangers Sorbents. 5(3). 281–293. 3 indexed citations
14.
Klein, Gerhard. (1984). Calculation of ideal or empirically modified mass-action equilibria in heterovalent, multicomponent ion exchange. Computers & Chemical Engineering. 8(3-4). 171–178. 7 indexed citations
15.
Vermeulen, Theodore, B.W. Tleimat, & Gerhard Klein. (1983). Ion-exchange pretreatment for scale prevention in desalting systems. Desalination. 47(1-3). 149–159. 23 indexed citations
16.
Klein, Gerhard, et al.. (1983). Early intervention with developmentally delayed and developmentally at rist children at the Reutlingen University of Education. International Journal of Rehabilitation Research. 6(4). 479–480. 1 indexed citations
17.
Klein, Gerhard, et al.. (1977). Letters to the editor. AIChE Journal. 23(3). 407–408. 1 indexed citations
18.
Klein, Gerhard, et al.. (1974). Theory of ion-complexing effects in ion-exchange column performance. The Journal of Physical Chemistry. 78(9). 926–935. 10 indexed citations
19.
Tondeur, Daniel & Gerhard Klein. (1967). Multicomponent Ion Exchange in Fixed Beds. Constant-Separation-Factor Equilibrium. Industrial & Engineering Chemistry Fundamentals. 6(3). 351–361. 41 indexed citations
20.
Klein, Gerhard. (1959). Concepts in Determining Potability of Water After Nuclear Attack. American Water Works Association. 51(4). 431–437. 1 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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