Michael Hammer

4.2k total citations · 1 hit paper
49 papers, 2.6k citations indexed

About

Michael Hammer is a scholar working on Surgery, Rheumatology and Radiology, Nuclear Medicine and Imaging. According to data from OpenAlex, Michael Hammer has authored 49 papers receiving a total of 2.6k indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Surgery, 13 papers in Rheumatology and 4 papers in Radiology, Nuclear Medicine and Imaging. Recurrent topics in Michael Hammer's work include Rheumatoid Arthritis Research and Therapies (8 papers), Spondyloarthritis Studies and Treatments (5 papers) and Orthopedic Infections and Treatments (4 papers). Michael Hammer is often cited by papers focused on Rheumatoid Arthritis Research and Therapies (8 papers), Spondyloarthritis Studies and Treatments (5 papers) and Orthopedic Infections and Treatments (4 papers). Michael Hammer collaborates with scholars based in Germany, United States and Canada. Michael Hammer's co-authors include James Champy, Steven A. Stanton, H. Zeidler, Robert Fowler, Thomas H. Davenport, Jürgen Heesemann, Daniel M. Doleys, Jens G. Kuipers, J. Wollenhaupt and Charles N. Aprill and has published in prestigious journals such as Annals of the Rheumatic Diseases, The Journal of Pediatrics and British Journal of Haematology.

In The Last Decade

Michael Hammer

43 papers receiving 2.1k citations

Hit Papers

Reengineering the Corporation 1993 2026 2004 2015 1993 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. Reengineering the Corporation
    1993 1.6k citations Michael Hammer, James Champy profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Michael Hammer Germany 19 977 524 299 263 216 49 2.6k
Ravi Kalakota United States 16 799 0.8× 810 1.5× 359 1.2× 469 1.8× 254 1.2× 24 4.4k
Remko Helms Netherlands 19 260 0.3× 336 0.6× 144 0.5× 245 0.9× 97 0.4× 83 1.5k
Robert MacIntosh United Kingdom 25 283 0.3× 426 0.8× 673 2.3× 29 0.1× 309 1.4× 87 2.4k
Sebastian Ullrich Germany 16 153 0.2× 672 1.3× 100 0.3× 68 0.3× 94 0.4× 49 2.2k
Yair Levy Israel 45 344 0.4× 224 0.4× 119 0.4× 828 3.1× 130 0.6× 298 7.4k
Peter W. G. Morris United Kingdom 25 783 0.8× 1.3k 2.6× 319 1.1× 257 1.0× 2.6k 12.0× 73 3.8k
Kee H. Chung United States 37 334 0.3× 784 1.5× 59 0.2× 55 0.2× 292 1.4× 193 4.1k
Calogero Iacono Italy 35 546 0.6× 344 0.7× 147 0.5× 219 0.8× 213 1.0× 120 6.1k
Richard L. Nolan United States 15 678 0.7× 413 0.8× 81 0.3× 201 0.8× 206 1.0× 63 1.5k
Jérôme Couturier France 14 400 0.4× 615 1.2× 95 0.3× 112 0.4× 149 0.7× 22 1.3k

Countries citing papers authored by Michael Hammer

Since Specialization
Citations

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

Fields of papers citing papers by Michael Hammer

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Michael Hammer

This figure shows the co-authorship network connecting the top 25 collaborators of Michael Hammer. A scholar is included among the top collaborators of Michael Hammer 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 Michael Hammer. Michael Hammer 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.
Roifman, Idan, Michael Hammer, John D. Sparkes, et al.. (2022). Utilization and impact of cardiovascular magnetic resonance on patient management in heart failure: insights from the SCMR Registry. Journal of Cardiovascular Magnetic Resonance. 24(1). 65–65. 3 indexed citations
2.
3.
Hammer, Michael, et al.. (2021). Appropriate utilization of cardiac computed tomography for the assessment of stable coronary artery disease. BMC Cardiovascular Disorders. 21(1). 154–154. 1 indexed citations
4.
Hammer, Michael, et al.. (2020). Fußsonographie in der Rheumatologie. Zeitschrift für Rheumatologie. 79(8). 755–769. 2 indexed citations
5.
Staar, S., et al.. (2015). Results and Prognostic Factors in Retrobulbar Radiotherapy Combined with Systemic Corticosteroids for Endocrine Orbitopathy (Graves� Disease). Frontiers of radiation therapy and oncology. 30. 206–217. 1 indexed citations
6.
Hammer, Michael, Tobias Schwarz, & Gerd Ganser. (2015). Intraartikuläre Injektion mit Kortison. Zeitschrift für Rheumatologie. 74(9). 774–779. 2 indexed citations
7.
Bogduk, Nikolai, Paul Dreyfuss, Ray M. Baker, et al.. (2008). Complications of Spinal Diagnostic and Treatment Procedures. Pain Medicine. 9(suppl 1). S11–S34. 67 indexed citations
8.
Schneider, M., M. Lelgemann, Christoph Baerwald, et al.. (2004). Nutzen der station�ren Therapie in der Versorgung von Patienten mit Rheumatoider Arthritis. Zeitschrift für Rheumatologie. 63(5). 402–413. 5 indexed citations
9.
Hammer, Michael, et al.. (2002). Intrastromale refraktive Chirurgie mit ultrakurzen Laserpulsen. Der Ophthalmologe. 99(10). 756–760. 1 indexed citations
10.
Jendro, M. C., et al.. (2001). Chlamydia andBorrelia DNA in synovial fluid of patients with early undifferentiated oligoarthritis: Results of a prospective study. Arthritis & Rheumatism. 44(11). 2679–2685. 55 indexed citations
11.
12.
Hammer, Michael. (1999). REENGINEERING THE SUPPLY CHAIN: AN INTERVIEW WITH MICHAEL HAMMER. Supply chain management review. 6 indexed citations
13.
Kuipers, Jens G., Ute Dreses‐Werringloer, L. Koehler, et al.. (1999). Optimised sample preparation of synovial fluid for detection ofChlamydia trachomatis DNA by polymerase chain reaction. Annals of the Rheumatic Diseases. 58(2). 103–108. 29 indexed citations
14.
Zeidler, H., et al.. (1998). Nachweis von Borrelien-DNA im Urin mittels Polymerase-Kettenreaktion in der rheumatologischen Labordiagnostik der Lyme-Borreliose. Zeitschrift für Rheumatologie. 57(2). 82–88. 1 indexed citations
15.
Witte, T, et al.. (1996). Autoantibody against a 58 kD molecule in a patient with neutropenia and NK cell deficiency. British Journal of Haematology. 92(3). 565–570.
16.
Hammer, Michael & Steven A. Stanton. (1995). The reengineering revolution : a handbook. 148 indexed citations
17.
Hammer, Michael & James Champy. (1994). Business reengineering : die Radikalkur für das Unternehmen. Campus Verlag eBooks. 45 indexed citations
18.
Wildhagen, K., K Hartung, Michael Hammer, et al.. (1993). Drug-related lupus in a patient with rheumatoid arthritis under sulfasalazine treatment. Clinical Rheumatology. 12(2). 265–267. 7 indexed citations
19.
20.
Hendrich, Christian, Jens G. Kuipers, Waldemar Kolanus, Reinhold Schmidt, & Michael Hammer. (1991). Activation of CD16+ effector cells by rheumatoid factor complex. Role of natural killer cells in rheumatoid arthritis. Arthritis & Rheumatism. 34(4). 423–431. 34 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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