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.
This map shows the geographic impact of N. Houk'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 N. Houk with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites N. Houk more than expected).
This network shows the impact of papers produced by N. Houk. 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 N. Houk. The network helps show where N. Houk may publish in the future.
Co-authorship network of co-authors of N. Houk
This figure shows the co-authorship network connecting the top 25 collaborators of N. Houk.
A scholar is included among the top collaborators of N. Houk 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 N. Houk. N. Houk is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Houk, N., et al.. (1999). Michigan catalogue of two-dimensional spectral types for the HD Stars, Vol. 5. 5. 0.65 indexed citations
4.
Murray, C. A., et al.. (1997). The Luminosity Function of Main Sequence Stars within 80 Parsecs. ESASP. 402. 485–488.1 indexed citations
5.
Houk, N., et al.. (1997). The Properties of Main-Sequence Stars from HIPPARCOS Data. Oxford University Research Archive (ORA) (University of Oxford). 402. 279–282.1 indexed citations
6.
Houk, N., et al.. (1989). Statistical Information on Variable Stars in the Michigan Spectral Catalogues, Volumes 1 - 4. Bulletin of the American Astronomical Society. 21. 748.1 indexed citations
7.
Houk, N., A. Evans, & James R. Sowell. (1988). Results from Volumes 1-4 (δ= -90° to -12°) of the Michigan Catalogue of Two-Dimensional Spectral Types for the HD Stars. Bulletin of the American Astronomical Society. 20. 695.1 indexed citations
8.
Evans, A., et al.. (1988). Distributions of Weak-Lined Stars from the Michigan Spectral Catalogue. Bulletin of the American Astronomical Society. 20. 1019.1 indexed citations
9.
Houk, N., et al.. (1988). Michigan Catalogue of Two-dimensional Spectral Types for the HD Stars. Volume 4, Declinations -26°.0 to -12°.0.. 4.76 indexed citations
10.
Houk, N., et al.. (1984). A second atlas of objective-prism spectra. Bulletin of the American Astronomical Society. 16. 405.2 indexed citations
11.
Houk, N., et al.. (1982). Vol. 3 of the Michigan Catalogue of Two-Dimensional Spectral Types (-40° to -26°) and Future Plans. Bulletin of the American Astronomical Society. 14. 615.
Houk, N. & A. P. Cowley. (1975). University of Michigan Catalogue of two-dimensional spectral types for the HD stars. Volume I. Declinations -90_ to -53_ƒ0..16 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.