This map shows the geographic impact of P Engel'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 P Engel with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites P Engel more than expected).
This network shows the impact of papers produced by P Engel. 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 P Engel. The network helps show where P Engel may publish in the future.
Co-authorship network of co-authors of P Engel
This figure shows the co-authorship network connecting the top 25 collaborators of P Engel.
A scholar is included among the top collaborators of P Engel 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 P Engel. P Engel is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Engel, P, et al.. (1986). Technological and physiological characteristics of a newly developed hand-lever drive system for wheelchairs.. PubMed. 23(4). 37–40.17 indexed citations
Engel, P, et al.. (1976). [Work physiological studies performed to optimate the lever propulsion and the seat position of a lever propelled wheelchair (author's transl)].. PubMed. 15(4). 217–28.8 indexed citations
Engel, P. (1970). [Variations during the menstrual cycle of blood pressure measured upon awaking. Self-supervision of blood pressure].. PubMed. 12. 496–501.1 indexed citations
13.
Engel, P, et al.. (1969). [Diurnal variations of the phase coupling between heart beat and respiration at rest and the influence of measured physical effort].. PubMed. 27(4). 339–55.4 indexed citations
Voigt, Ehrhard, et al.. (1968). [On the daily operation of physical work capacity].. PubMed. 25(1). 1–12.14 indexed citations
17.
Engel, P, et al.. (1968). [Measurement, using a new coincidence measuring apparatus, of the phase coupling between heart beta and respiration in humans].. PubMed. 298(3). 258–70.12 indexed citations
18.
Engel, P & G Hildebrandt. (1967). [On the fluctuations of reaction time in the heart rhythm].. PubMed. 294(3). 223–8.4 indexed citations
Hildebrandt, G & P Engel. (1963). [THE EFFECT OF RESPIRATORY RHYTHM ON REACTION TIME].. PubMed. 278. 113–29.12 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.