A. Claßen

407 total citations
12 papers, 146 citations indexed

About

A. Claßen is a scholar working on Molecular Biology, Pulmonary and Respiratory Medicine and Pediatrics, Perinatology and Child Health. According to data from OpenAlex, A. Claßen has authored 12 papers receiving a total of 146 indexed citations (citations by other indexed papers that have themselves been cited), including 4 papers in Molecular Biology, 4 papers in Pulmonary and Respiratory Medicine and 3 papers in Pediatrics, Perinatology and Child Health. Recurrent topics in A. Claßen's work include Kidney Stones and Urolithiasis Treatments (4 papers), Analytical chemistry methods development (2 papers) and Metabolism and Genetic Disorders (2 papers). A. Claßen is often cited by papers focused on Kidney Stones and Urolithiasis Treatments (4 papers), Analytical chemistry methods development (2 papers) and Metabolism and Genetic Disorders (2 papers). A. Claßen collaborates with scholars based in Germany, United States and Austria. A. Claßen's co-authors include Albrecht Hesse, D. R. Bach, A. Thon, J. Küpfer, Ralf Jäger, Christina Schut, Uwe Gieler, Wolfgang Doppler, Andrea Jahnen and W. Vahlensieck and has published in prestigious journals such as Science, Analytica Chimica Acta and Clinical Chemistry and Laboratory Medicine (CCLM).

In The Last Decade

A. Claßen

12 papers receiving 124 citations

Peers

A. Claßen
A Knight Canada
Peter Schnierle Switzerland
Tracy Fausnight United States
H.-E. Schröder Germany
Cu Phan United States
G. Hauck Germany
Samantha Rutherford United Kingdom
Kelly Leonard United States
L. Wilhelm Germany
S. Crescioli Italy
A Knight Canada
A. Claßen
Citations per year, relative to A. Claßen A. Claßen (= 1×) peers A Knight

Countries citing papers authored by A. Claßen

Since Specialization
Citations

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

Fields of papers citing papers by A. Claßen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of A. Claßen

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

All Works

12 of 12 papers shown
1.
Kuzmanovic, Bojana, Sofia Lundh, A. Claßen, et al.. (2025). Thalamic opioids from POMC satiety neurons switch on sugar appetite. Science. 387(6735). 750–758. 5 indexed citations
2.
Hesse, Albrecht, K. Klocke, A. Claßen, & W. Vahlensieck. (2015). Age and Sex as Factors in Oxalic Acid Excretion in Healthy Persons and Calcium Oxalate Stone Patients. Contributions to nephrology. 58. 16–20. 2 indexed citations
3.
Schut, Christina, et al.. (2015). Agreeableness and Self-Consciousness as Predictors of Induced Scratching and Itch in Patients with Psoriasis. International Journal of Behavioral Medicine. 22(6). 726–734. 27 indexed citations
4.
Claßen, A., et al.. (1990). Simultaneous Determination of Urinary Phosphate and Sulphate by Ion-Chromatography. Clinical Chemistry and Laboratory Medicine (CCLM). 28(2). 91–4. 6 indexed citations
5.
Hesse, Albrecht, et al.. (1989). Experimental Investigations on Dissolution of Incrustations on the Surface of Catheters (With 1 color plate). Urologia Internationalis. 44(6). 364–369. 24 indexed citations
6.
7.
Hesse, Albrecht, et al.. (1988). 2,8-Dihydroxyadeninuria: Laboratory Diagnosis and Therapy Control. Urologia Internationalis. 43(3). 174–178. 14 indexed citations
8.
9.
Claßen, A. & Albrecht Hesse. (1987). Measurement of Urinary Oxalate: An Enzymatic and an Ion Chromatographic Method Compared. Clinical Chemistry and Laboratory Medicine (CCLM). 25(2). 95–9. 14 indexed citations
10.
Claßen, A. & Albrecht Hesse. (1986). Vergleich zwischen enzymatischer und ionenchromatographischer Oxalsäurebestimmung im Urin. Fresenius Zeitschrift für Analytische Chemie. 324(3-4). 303–303. 1 indexed citations
11.
Hesse, Albrecht, et al.. (1985). An evaluation of test sticks used for the measurement of the specific gravity of urine from patients with stone disease. Urological Research. 13(4). 185–8. 5 indexed citations
12.

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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by A Knight Breakdown of academic impact, for papers by Peter Schnierle Breakdown of academic impact, for papers by Tracy Fausnight Breakdown of academic impact, for papers by H.-E. Schröder Breakdown of academic impact, for papers by Cu Phan Breakdown of academic impact, for papers by G. Hauck Breakdown of academic impact, for papers by Samantha Rutherford Breakdown of academic impact, for papers by Kelly Leonard Breakdown of academic impact, for papers by L. Wilhelm Breakdown of academic impact, for papers by S. Crescioli
Rankless by CCL
2026