Datasets should be cited in journal articles. Examples:
This work uses a subset of the NCAS archive of Landsat TM/ETM+ data in Australia from 1989 to 2006.
This work is based on observations made with the Spitzer Space Telescope, which is operated by the Jet Propulsion Laboratory,
California Institute of Technology under a contract with NASA. The observations are associated with programs P78 and P30950. This work is based on observations made with the NASA/ESA Hubble Space Telescope, obtained from the Data Archive at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555. The observations are associated with program GO-10496.
Kuhlmann, H et al. (2009): Age models, iron intensity, magnetic susceptibility records and dry bulk density of sediment cores from around the Canary Islands. doi:10.1594/PANGAEA.727522. http://dx.doi.org/10.1594/PANGAEA.727522 Supplement to: Kuhlmann, Holger; Freudenthal, Tim; Helmke, Peer; Meggers, Helge (2004): Reconstruction of paleoceanography off NW Africa during the last 40,000 years: influence of local and regional factors on sediment accumulation. Marine Geology, 207(1–4), 209–224. doi:10.1016/j.margeo.2004.03.017 http://dx.doi.org/10.1016/j.margeo.2004.03.017
Include these elements in your citation, where known:
1) Author / Principal Investigator: the person(s) or institution responsible for compiling the data
2) Year of publication
3) Title of data source
4) Edition or Version number
5) Producer and Distributor: if data are archived, include the producer/distributor and location
6) URL for the dataset, preferably a DOI