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Klein, Axel

Klein, Axel

Universität zu Köln, Germany

2026 Rank: 566,069

Overall Rank
Rank in SubField 1
Publications
Total Cites
Main Field:

Chemistry

SubField 1:

Inorganic & Nuclear Chemistry

SubField 2:

Organic Chemistry

Rank in SubField 1: 2,455 out of 86,991 Researchers

Data For The Year: 2026
Metrics Self-Citations Excluded All
Rank Based on Composite Score566,069329,668
Total Cites243384
H-index68
Hm-index34
Number of Single Authored Papers44
Total Cites to Single Authored Papers12
Number of Single+First Authored Papers4646
Total Cites to Single+First Authored Papers1925
Number of Single+First+Last Authored Papers170170
Total Cites to Single+First+Last Authored Papers154250
Composite Score22
Number of Distinct Citing Papers224279
Ratio of Total Citations to Distinct Citing Papers 1.08 1.38
Self-Citation Percentage
36.72%
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Klein, Axel

Klein, Axel

University of Cologne, Germany

2022 Rank: 312,737

Overall Rank
Rank in SubField 1
Publications
Total Cites
Main Field:

Chemistry

SubField 1:

Inorganic & Nuclear Chemistry

SubField 2:

Organic Chemistry

Rank in SubField 1: 1,628 out of 70,192 Researchers

Data For The Year: 2022
Metrics Self-Citations Excluded All
Rank Based on Composite Score312,737203,091
Total Cites265373
H-index68
Hm-index34
Number of Single Authored Papers33
Total Cites to Single Authored Papers12
Number of Single+First Authored Papers4545
Total Cites to Single+First Authored Papers5674
Number of Single+First+Last Authored Papers129129
Total Cites to Single+First+Last Authored Papers150221
Composite Score22
Number of Distinct Citing Papers214252
Ratio of Total Citations to Distinct Citing Papers 1.24 1.48
Self-Citation Percentage
28.95%
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Klein, Axel

Klein, Axel

University of Cologne, Germany

2021 Rank: 295,590

Overall Rank
Rank in SubField 1
Publications
Total Cites
Main Field:

Chemistry

SubField 1:

Inorganic & Nuclear Chemistry

SubField 2:

Organic Chemistry

Rank in SubField 1: 1,687 out of 72,062 Researchers

Data For The Year: 2021
Metrics Self-Citations Excluded All
Rank Based on Composite Score295,590211,514
Total Cites353497
H-index89
Hm-index45
Number of Single Authored Papers33
Total Cites to Single Authored Papers23
Number of Single+First Authored Papers4545
Total Cites to Single+First Authored Papers69107
Number of Single+First+Last Authored Papers118118
Total Cites to Single+First+Last Authored Papers195283
Composite Score22
Number of Distinct Citing Papers288342
Ratio of Total Citations to Distinct Citing Papers 1.23 1.45
Self-Citation Percentage
28.97%
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