This map shows the geographic impact of Rolf Ehrsam'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 Rolf Ehrsam with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Rolf Ehrsam more than expected).
This network shows the impact of papers produced by Rolf Ehrsam. 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 Rolf Ehrsam. The network helps show where Rolf Ehrsam may publish in the future.
Co-authorship network of co-authors of Rolf Ehrsam
This figure shows the co-authorship network connecting the top 25 collaborators of Rolf Ehrsam.
A scholar is included among the top collaborators of Rolf Ehrsam 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 Rolf Ehrsam. Rolf Ehrsam is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Perrig‐Chiello, Pasqualina, et al.. (1996). Autonomie, Wohlbefinden und Gesundheit im Alter: Eine interdisziplinäre Altersstudie (IDA). Bern Open Repository and Information System (University of Bern).5 indexed citations
8.
Perrig‐Chiello, Pasqualina, et al.. (1996). [Wellbeing, health and autonomy in old age: the Basal IDA Study (Interdisciplinary Aging Study)].. PubMed. 29(2). 95–109.15 indexed citations
9.
Perrig‐Chiello, Pasqualina, et al.. (1994). Subjektive und objektive Gesundheit und Gedächtnis bei Betagten. Bern Open Repository and Information System (University of Bern).1 indexed citations
10.
Ehrsam, Rolf & André Aeschlimann. (1994). [Muscle strength training in old age].. PubMed. 23(1). 65–75.1 indexed citations
Perruchoud, A, et al.. (1980). Atelectasis of the lung: bronchoscopic lavage with acetylcysteine. Experience in 51 patients.. PubMed. 111. 163–8.5 indexed citations
20.
Howald, H., et al.. (1975). [Conception and evaluation of a simple fitness test].. PubMed. 23(2). 57–92.1 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.