This map shows the geographic impact of F.S. Gaastra'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 F.S. Gaastra with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites F.S. Gaastra more than expected).
This network shows the impact of papers produced by F.S. Gaastra. 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 F.S. Gaastra. The network helps show where F.S. Gaastra may publish in the future.
Co-authorship network of co-authors of F.S. Gaastra
This figure shows the co-authorship network connecting the top 25 collaborators of F.S. Gaastra.
A scholar is included among the top collaborators of F.S. Gaastra 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 F.S. Gaastra. F.S. Gaastra is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Blussé, Léonard, et al.. (2011). Companies and Trade: Essays on Overseas Trading Companies during the Ancien Régime. Medical Entomology and Zoology.5 indexed citations
Gaastra, F.S., et al.. (2004). The Age of Aceh and the Evolution of Kingship 1599-1641.6 indexed citations
7.
Gaastra, F.S.. (2004). Vragen over de koopvaardij. De 'Enquête omtrent den toestand van de Nederlandsche koopvaardijvloot' uit 1874 en de achteruitgang van de handelsvloot. Leiden Repository (Leiden University).1 indexed citations
8.
Gaastra, F.S., et al.. (2004). Globalisation in the Early Modern period.1 indexed citations
9.
Gaastra, F.S. & Peter Daniels. (2003). The Dutch East India Company : expansion and decline.50 indexed citations
10.
Broeze, Frank, et al.. (2003). In het kielzog. Maritiem-historische studies aangeboden aan Jaap R. Bruijn bij zijn vertrek als hoogleraar zeegeschiedenis aan de Universiteit Leiden. Data Archiving and Networked Services (DANS).2 indexed citations
11.
Blussé, Léonard & F.S. Gaastra. (1998). On the Eighteenth Century as a Category of Asian History: Van Leur in Retrospect. Medical Entomology and Zoology.26 indexed citations
12.
Emmer, P.C. & F.S. Gaastra. (1996). The organization of interoceanic trade in European expansion, 1450-1800.8 indexed citations
Gaastra, F.S., et al.. (1993). Ships, sailors and spices : East India Companies and their shopping in the 16th, 17th and 18th centuries. Medical Entomology and Zoology.10 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.