Norbert Speich

733 total citations
23 papers, 589 citations indexed

About

Norbert Speich is a scholar working on Epidemiology, Molecular Biology and Surgery. According to data from OpenAlex, Norbert Speich has authored 23 papers receiving a total of 589 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Epidemiology, 7 papers in Molecular Biology and 5 papers in Surgery. Recurrent topics in Norbert Speich's work include Cervical Cancer and HPV Research (15 papers), Genital Health and Disease (5 papers) and Hepatitis B Virus Studies (5 papers). Norbert Speich is often cited by papers focused on Cervical Cancer and HPV Research (15 papers), Genital Health and Disease (5 papers) and Hepatitis B Virus Studies (5 papers). Norbert Speich collaborates with scholars based in Germany, Hungary and Switzerland. Norbert Speich's co-authors include Magdolna Bollmann, R. Bollmann, Christoph Schmitt, Hans G. Trüper, Christiane Dahl, Gábor Méhes, A. Varnai, Ágnes Bánkfalvi, Robert Torka and Krisztina Kovács and has published in prestigious journals such as Cancer, Biochemical and Biophysical Research Communications and Methods in enzymology on CD-ROM/Methods in enzymology.

In The Last Decade

Norbert Speich

23 papers receiving 541 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Norbert Speich Germany 16 345 200 186 61 60 23 589
Peter S. Kessler United States 13 311 0.9× 547 2.7× 136 0.7× 76 1.2× 80 1.3× 15 1.2k
Isabel Duarte Portugal 16 78 0.2× 445 2.2× 40 0.2× 85 1.4× 108 1.8× 39 745
Stephan Schulz Germany 13 35 0.1× 150 0.8× 42 0.2× 47 0.8× 211 3.5× 17 826
Claudia Wietek Ireland 9 52 0.2× 196 1.0× 17 0.1× 30 0.5× 88 1.5× 10 689
B. N. Kudryavtsev Russia 11 71 0.2× 219 1.1× 94 0.5× 25 0.4× 27 0.5× 37 518
Rachel Guy Israel 13 19 0.1× 229 1.1× 55 0.3× 19 0.3× 39 0.7× 17 564
Haim Gamliel Israel 13 45 0.1× 130 0.7× 29 0.2× 15 0.2× 72 1.2× 43 462
Huei-Jean Huang Taiwan 13 201 0.6× 142 0.7× 203 1.1× 4 0.1× 125 2.1× 34 784
Stephen Kissane United Kingdom 12 44 0.1× 107 0.5× 18 0.1× 28 0.5× 43 0.7× 17 367

Countries citing papers authored by Norbert Speich

Since Specialization
Citations

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

Fields of papers citing papers by Norbert Speich

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Norbert Speich

This figure shows the co-authorship network connecting the top 25 collaborators of Norbert Speich. A scholar is included among the top collaborators of Norbert Speich 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 Norbert Speich. Norbert Speich 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.
Kovács, Krisztina, A. Varnai, Magdolna Bollmann, et al.. (2009). A 7.5-year prospective study of longer than 18 months type-specific human papillomavirus persistence in a routine cytology-based cervical screening population of about 31 000 women in West Germany. European Journal of Cancer Prevention. 18(4). 307–315. 10 indexed citations
2.
Kovács, Krisztina, A. Varnai, Magdolna Bollmann, et al.. (2008). Prevalence and genotype distribution of multiple human papillomavirus infection in the uterine cervix: A 7.5‐year longitudinal study in a routine cytology‐based screening population in West Germany. Journal of Medical Virology. 80(10). 1814–1823. 24 indexed citations
3.
4.
Petersen, Iver, Christiane Schewe, Karsten Schlüns, et al.. (2007). Inter-laboratory validation of PCR-based HPV detection in pathology specimens. Archiv für Pathologische Anatomie und Physiologie und für Klinische Medicin. 451(3). 701–16. 28 indexed citations
5.
Bollmann, R., Gábor Méhes, Norbert Speich, Christoph Schmitt, & Magdolna Bollmann. (2005). Aberrant, highly hyperdiploid cells in human papillomavirus-positive, abnormal cytologic samples are associated with progressive lesions of the uterine cervix. Cancer. 105(2). 96–100. 15 indexed citations
6.
7.
Varnai, A., Magdolna Bollmann, Norbert Speich, et al.. (2005). HPV in anal squamous cell carcinoma and anal intraepithelial neoplasia (AIN). International Journal of Colorectal Disease. 21(2). 135–142. 56 indexed citations
8.
Méhes, Gábor, Norbert Speich, Magdolna Bollmann, & R. Bollmann. (2004). Chromosomal aberrations accumulate in polyploid cells of high-grade squamous intraepithelial lesions (HSIL). Pathology & Oncology Research. 10(3). 142–148. 24 indexed citations
9.
Bollmann, Magdolna, et al.. (2004). Measuring telomerase activity in various human tumors in routine histology and cytology. International Journal of Molecular Medicine. 13(2). 303–9. 1 indexed citations
10.
Speich, Norbert, et al.. (2004). Human papillomavirus (HPV) study of 2.916 cytological samples by PCR and DNA sequencing: genotype spectrum of patients from the west german area. Pathology - Research and Practice. 200(4). 357–357. 4 indexed citations
11.
Speich, Norbert, Christoph Schmitt, R. Bollmann, & Magdolna Bollmann. (2004). Human papillomavirus (HPV) study of 2916 cytological samples by PCR and DNA sequencing: genotype spectrum of patients from the west German area. Journal of Medical Microbiology. 53(2). 125–128. 70 indexed citations
12.
Bollmann, R., Gábor Méhes, Robert Torka, et al.. (2002). Determination of features indicating progression in atypical squamous cells with undetermined significance. Cancer. 99(2). 113–117. 36 indexed citations
13.
Bollmann, R., Gábor Méhes, Robert Torka, et al.. (2002). Human papillomavirus typing and DNA ploidy determination of squamous intraepithelial lesions in liquid-based cytologic samples. Cancer. 99(1). 57–62. 28 indexed citations
14.
Molitor, Michael, Christiane Dahl, Ulrike Schäfer, et al.. (1998). A dissimilatory sirohaem-sulfite-reductase-type protein from the hyperthermophilic archaeon Pyrobaculum islandicum. Microbiology. 144(2). 529–541. 56 indexed citations
15.
Otto, Michaël, et al.. (1996). Six new polymorphic microsatellite markers used for the integration of genetic and physical maps of human chromosome 7. Human Genetics. 97(6). 842–844. 2 indexed citations
16.
Dahl, Christiane, Norbert Speich, & Hans G. Trüper. (1994). [23] Enzymology and molecular biology of sulfate reduction in extremely thermophilic archaeon Archaeoglobus fulgidus. Methods in enzymology on CD-ROM/Methods in enzymology. 243. 331–349. 27 indexed citations
17.
18.
Kunz, Jürgen, Stephen W. Scherer, Yangzhu Du, et al.. (1994). Regional Localization of 725 Human Chromosome 7-Specific Yeast Artificial Chromosome Clones. Genomics. 22(2). 439–448. 36 indexed citations
19.
Lampreia, Jorge, Guy Fauque, Norbert Speich, et al.. (1991). Spectroscopic studies on APS reductase isolated from the hyperthermophilic sulfate-reducing archaebacterium Archaeglobus fulgidus. Biochemical and Biophysical Research Communications. 181(1). 342–347. 15 indexed citations
20.
Speich, Norbert & Hans G. Trüper. (1988). Adenylylsulphate Reductase in a Dissimilatory Sulphate-reducing Archaebacterium. Microbiology. 134(6). 1419–1425. 26 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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