This map shows the geographic impact of Petr Skupien'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 Petr Skupien with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Petr Skupien more than expected).
This network shows the impact of papers produced by Petr Skupien. 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 Petr Skupien. The network helps show where Petr Skupien may publish in the future.
Co-authorship network of co-authors of Petr Skupien
This figure shows the co-authorship network connecting the top 25 collaborators of Petr Skupien.
A scholar is included among the top collaborators of Petr Skupien 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 Petr Skupien. Petr Skupien is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Skupien, Petr, et al.. (2019). Biostratigrafie, litologie a mineralogie hlubokovodnich sedimentu barnasiowskeho souvrstvi na brehu Krnalovickeho potoka u Rychaltic. 5202. 135–140.1 indexed citations
Vašíček, Zdeněk & Petr Skupien. (2014). Recent discoveries of Tithonian ammonites in the Štramberk Limestone (Kotouč Quarry, Outer Western Carpathians). Annales Societatis Geologorum Poloniae/Rocznik Polskiego Towarzystwa Geologicznego. 84(2). 131–141.8 indexed citations
14.
Vašíček, Zdeněk & Petr Skupien. (2013). Early Berriasian ammonites from the Štramberk Limestone in the Kotouč Quarry (Outer Western Carpathians, Czech Republic). Annales Societatis Geologorum Poloniae/Rocznik Polskiego Towarzystwa Geologicznego. 83(4). 329–342.14 indexed citations
15.
Skupien, Petr & Zdeněk Vašíček. (2008). Western Carpathians in the territory of the Czech Republic. Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. 139–149.3 indexed citations
16.
Golonka, Jan, et al.. (2008). Główne elementy paleogeograficzne Zachodnich Karpat zewnętrznych w późnej jurze i wczesnej kredzie. Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. 61–72.1 indexed citations
17.
Vašíček, Zdeněk, et al.. (2004). New occurrences of Lower Cretaceous ammonites in the western part of the Silesian Unit (Barremian - early Aptian, Outer Western Carpathians, Czech Republic). Journal of Geosciences. 49. 41–56.8 indexed citations
18.
Skupien, Petr, et al.. (2003). Dalsi informace o vyzkumu mikrofosilii ze stramberske oblasti (slezska jednotka, Zapadni Karpaty). 2002. 147–149.2 indexed citations
19.
Vašíček, Zdeněk & Petr Skupien. (2002). Notes on some rare Barremian/Aptian ancyloceratids from the Silesian Unit (Outer Western Carpathians, Czech Republic). Journal of Geosciences. 47. 65–71.7 indexed citations
20.
Skupien, Petr, et al.. (2002). Mikrofosilie z pelitickych ulozenin stramberske oblasti (Vnejsi Zapadni Karpaty). 2001. 105–109.2 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.