This map shows the geographic impact of H. Ostertag'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 H. Ostertag with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites H. Ostertag more than expected).
This network shows the impact of papers produced by H. Ostertag. 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 H. Ostertag. The network helps show where H. Ostertag may publish in the future.
Co-authorship network of co-authors of H. Ostertag
This figure shows the co-authorship network connecting the top 25 collaborators of H. Ostertag.
A scholar is included among the top collaborators of H. Ostertag 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 H. Ostertag. H. Ostertag is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Caselitz, M, M Gebel, Samuel Wagner, et al.. (1999). [Treatment of multilocular hepatocellular carcinoma (HCC) of 4.5 cm and 3.5 cm diameter using percutaneous ethanol injection in a patient with advanced liver cirrhosis].. PubMed. 37(12). 1175–8.2 indexed citations
Brix, Gunnar, J. Zaers, L.-E. Adam, et al.. (1997). Performance evaluation of a whole-body PET scanner using the NEMA protocol. National Electrical Manufacturers Association.. PubMed. 38(10). 1614–23.423 indexed citations
Haberkorn, Uwe, Ludwig G. Strauss, A. Dimitrakopoulou, et al.. (1991). PET studies of fluorodeoxyglucose metabolism in patients with recurrent colorectal tumors receiving radiotherapy.. PubMed. 32(8). 1485–90.196 indexed citations
Ostertag, H., et al.. (1989). Measured attenuation correction methods. European Journal of Nuclear Medicine and Molecular Imaging. 15(11). 722–726.35 indexed citations
Helus, F., et al.. (1984). Assessment of tumor blood flow using C-11 butanol. OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information).1 indexed citations
16.
Knapp, Wolfram H., et al.. (1984). N-13 L-glutamate uptake in malignancy: its relationship to blood flow.. PubMed. 25(9). 989–97.10 indexed citations
Strauss, Ludwig G., Volker Sturm, P. Georgi, et al.. (1982). Radioisotope therapy of cystic craniopharyngeomas. International Journal of Radiation Oncology*Biology*Physics. 8(9). 1581–1585.25 indexed citations
19.
Clorius, John H., et al.. (1978). [131I] Hippuran renography in the detection of orthostatic hypertension.. PubMed. 19(4). 343–7.6 indexed citations
20.
Krauß, Oliver, Werner Lorenz, H. Luig, H. Ostertag, & P. Schmidlin. (1970). Imaging properties of the positron camera.. PubMed. 9(2). 103–19.2 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.