Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies
if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the
same subfield and year (this is the minimum needed to enter the top 1%, not the average
within it), or reaches the top citation threshold in at least one of its specific research
topics.
Spermatogenesis and spermatology of some teleost fish species
Countries citing papers authored by Roland Billard
Since
Specialization
Citations
This map shows the geographic impact of Roland Billard'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 Roland Billard with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Roland Billard more than expected).
This network shows the impact of papers produced by Roland Billard. 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 Roland Billard. The network helps show where Roland Billard may publish in the future.
Co-authorship network of co-authors of Roland Billard
This figure shows the co-authorship network connecting the top 25 collaborators of Roland Billard.
A scholar is included among the top collaborators of Roland Billard 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 Roland Billard. Roland Billard 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.
Billard, Roland. (2000). BIOLOGY AND CONTROL OF REPRODUCTION OF STURGEONS IN FISH FARM. Iranian journal of fisheries science. 2(2). 1–20.7 indexed citations
Linhart, Otomar, Roland Billard, J. Kouřil, & J. Hamáčková. (1997). Artificial insemination and gamete management in European catfish, Silurus glanis L.. Polskie Archiwum Hydrobiologii. 44.18 indexed citations
5.
Cosson, J., et al.. (1997). Movements of fish sperm flagella studied by high speed videomicroscopy coupled to computer assisted image analysis. Polskie Archiwum Hydrobiologii. 44.34 indexed citations
6.
Billard, Roland & Martin Flajšhans. (1995). The current state of research and culture of tench, Tinca tinca Linnaeus [ 1758 ]. Concluding remarks on the workshop. Polskie Archiwum Hydrobiologii. 42.13 indexed citations
7.
Billard, Roland. (1995). Les systèmes de production aquacole et leurs relations avec l'environnement. Cahiers Agricultures. 4(1). 9–28.2 indexed citations
8.
Linhart, Otomar & Roland Billard. (1995). Biology of gametes and artificial reproduction in common tench, Tinca tinca [L.]. A review. Polskie Archiwum Hydrobiologii. 42.35 indexed citations
Billard, Roland. (1983). Effects of coelomic and seminal fluids and various saline diluents on the fertilizing ability of spermatozoa in the rainbow trout, Salmo gairdneri. Prodinra (INRA Bordeaux-Aquitaine).79 indexed citations
Billard, Roland, Alexis Fostier, Claudine Weil, & Bernard Breton. (1982). Endocrine Control of Spermatogenesis in Teleost Fish. Canadian Journal of Fisheries and Aquatic Sciences. 39(1). 65–79.227 indexed citations
20.
Billard, Roland, M. Richard, & Bernard Breton. (1976). [Stimulation of pituitary gonadotropin secretion after castration in rainbow trout: variation of the response during the reproductive cycle].. PubMed. 283(2). 171–4.13 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.