This map shows the geographic impact of M. Calvani'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 M. Calvani with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites M. Calvani more than expected).
This network shows the impact of papers produced by M. Calvani. 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 M. Calvani. The network helps show where M. Calvani may publish in the future.
Co-authorship network of co-authors of M. Calvani
This figure shows the co-authorship network connecting the top 25 collaborators of M. Calvani.
A scholar is included among the top collaborators of M. Calvani 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 M. Calvani. M. Calvani is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
All Works
20 of 20 papers shown
1.
Čadež, A., L. Zampieri, C. Barbieri, et al.. (2015). What brakes the Crab pulsar?. Astronomy and Astrophysics. 587. A99–A99.7 indexed citations
Čadež, A., et al.. (2003). X-ray iron line profiles from warped accretion discs. Memorie della Societa Astronomica Italiana. 74. 446.1 indexed citations
9.
Marziani, P., J. W. Sulentic, R. Zamanov, & M. Calvani. (2003). The very broad line region of AGN. MmSAI. 74. 490.2 indexed citations
Marziani, P., J. W. Sulentic, R. Zamanov, et al.. (2003). Using Quasars for Cosmology. 3(9). 218–6.4 indexed citations
12.
Marziani, P., R. Zamanov, J. W. Sulentic, M. Calvani, & D. Dultzin‐Hacyan. (2003). High ionization winds in the narrow line region of active galactic nuclei. Memorie della Societa Astronomica Italiana. 74. 492.1 indexed citations
Calvani, M., et al.. (1997). Detecting accretion disks in active galactic nuclei.. Memorie della Societa Astronomica Italiana. 68. 95–96.2 indexed citations
Zwitter, T. & M. Calvani. (1989). SS433: a black hole candidate?. Monthly Notices of the Royal Astronomical Society. 236(3). 581–588.2 indexed citations
17.
Calvani, M. & Zdeněk Stuchlík. (1983). The Latitudinal Motion of Test Particles in the Kerr-Newman Sitter Dyon Spacetime. 1. 695.1 indexed citations
18.
Abramowicz, M. A., M. Calvani, & L. Nobili. (1983). Runaway Instability in Accretion Disks Orbiting Black Holes. 1. 677.1 indexed citations
19.
Calvani, M. & M. Francaviglia. (1978). Irreducible mass. unincreasable angular momentum and isoareal transformations for black hole physics.. Acta Physica Polonica B Proceedings Supplement. 9. 11–14.2 indexed citations
20.
Tod, K. P., F. de Felice, & M. Calvani. (1976). Spinning test particles in the field of a black hole. Il Nuovo cimento della Società italiana di fisica. B/Il Nuovo cimento B. 34(2). 365–379.73 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.