This map shows the geographic impact of Jan Gudej'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 Jan Gudej with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Jan Gudej more than expected).
This network shows the impact of papers produced by Jan Gudej. 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 Jan Gudej. The network helps show where Jan Gudej may publish in the future.
Co-authorship network of co-authors of Jan Gudej
This figure shows the co-authorship network connecting the top 25 collaborators of Jan Gudej.
A scholar is included among the top collaborators of Jan Gudej 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 Jan Gudej. Jan Gudej is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Owczarek, Aleksandra & Jan Gudej. (2013). Investigation into biologically active constituents of Geum rivale L.. PubMed. 70(1). 111–4.12 indexed citations
Tomczyk, Michał, Danuta Drozdowska, Anna Bielawska, Krzysztof Bielawski, & Jan Gudej. (2008). Human DNA topoisomerase inhibitors from Potentilla argentea and their cytotoxic effect against MCF-7.. PubMed. 63(5). 389–93.18 indexed citations
6.
Wolniak, Michał, Monika Tomczykowa, Michał Tomczyk, Jan Gudej, & Iwona Wawer. (2008). Antioxidant activity of extracts and flavonoids from Bidens tripartita.. PubMed. 64(5). 441–7.44 indexed citations
Gudej, Jan, et al.. (2003). Qualitative and quantitative chromatographic investigation of flavonoids in Pyrus communis L. flowers.. PubMed. 60(1). 81–5.3 indexed citations
11.
Nazaruk, Jolanta & Jan Gudej. (2003). Flavonoid compounds from the flowers of Cirsium rivulare (Jacq.) All.. PubMed. 60(1). 87–9.19 indexed citations
12.
Tomczyk, Michał & Jan Gudej. (2002). Quercetin and Kaempferol Glycosides from Ficaria verna Flowers and Tgheir Structure Studied by 2D NMR Spectroscopy. Polish Journal of Chemistry. 76(11). 1601–1605.5 indexed citations
13.
Nazaruk, Jolanta, et al.. (2002). Investigation of essential oil from Cirsium rivulare [Jacq.] All.flowers. Herba Polonica. 48(4). 193–197.5 indexed citations
14.
Gudej, Jan, et al.. (2002). Flavonoid compounds from Pyrus communis L. flowers.. PubMed. 59(1). 53–6.8 indexed citations
15.
Tomczyk, Michał, Jan Gudej, & Marek Sochacki. (2002). Flavonoids from Ficaria verna Huds.. Zeitschrift für Naturforschung C. 57(5-6). 440–444.34 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.