This map shows the geographic impact of Lutz Klassen'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 Lutz Klassen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Lutz Klassen more than expected).
This network shows the impact of papers produced by Lutz Klassen. 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 Lutz Klassen. The network helps show where Lutz Klassen may publish in the future.
Co-authorship network of co-authors of Lutz Klassen
This figure shows the co-authorship network connecting the top 25 collaborators of Lutz Klassen.
A scholar is included among the top collaborators of Lutz Klassen 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 Lutz Klassen. Lutz Klassen is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Klassen, Lutz, et al.. (2020). The Pitted Ware culture on Djursland in the Neolithic world. Research at the University of Copenhagen (University of Copenhagen).1 indexed citations
5.
Philippsen, Bente, Rune Iversen, & Lutz Klassen. (2020). The Pitted Ware culture chronology on Djursland:New evidence from Kainsbakke and other sites. Research at the University of Copenhagen (University of Copenhagen).2 indexed citations
6.
Klassen, Lutz, et al.. (2020). Strontium and lead isotope studies of faunal and human remains from Kainsbakke and Kirial Bro. 407–446.7 indexed citations
Pétrequin, Pierre, et al.. (2012). Les haches en " jades alpins " en Bulgarie. HAL (Le Centre pour la Communication Scientifique Directe). 1231–1279.4 indexed citations
12.
Cassen, Serge, et al.. (2012). La circulation des haches carnacéennes en Europe occidentale. HAL (Le Centre pour la Communication Scientifique Directe). 1015–1045.2 indexed citations
13.
Klassen, Lutz, Pierre Pétrequin, & Serge Cassen. (2011). The power of attraction ... Zur Akkumulation sozial wertbesetzer alpiner Artefakte im Morbihan und im westlichen Ostseeraum im 5. und 4. Jahrtausend V.Chr. HAL (Le Centre pour la Communication Scientifique Directe). 13–40.2 indexed citations
Pétrequin, Pierre, et al.. (2009). L'Unique, la Paire, les Multiples. A propos des dépôts de haches polies en roches alpines en Europe occidentale pendant les Ve et IVe millénaires. HAL (Le Centre pour la Communication Scientifique Directe). 417–427.1 indexed citations
16.
Sheridan, Alison, et al.. (2008). Neolithic Alpine axeheads, from the Continent to Great Britain, the Isle of Man and Ireland.. HAL (Le Centre pour la Communication Scientifique Directe).1 indexed citations
Klassen, Lutz. (1999). Prestigeøkser af sjældne alpine bjergarter: En glemt og overset fundgruppe fra ældre stenalders slutning i Danmark. Kuml. 13(13). 11–52.2 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.