1989 in science (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "1989 in science" in English language version.

refsWebsite
Global rank English rank
18th place
17th place
2nd place
2nd place
75th place
83rd place
1,160th place
737th place
4th place
4th place
1,518th place
1,072nd place
5th place
5th place
1st place
1st place
low place
low place

doi.org

groups.google.com

harvard.edu

ui.adsabs.harvard.edu

nasa.gov

ssd.jpl.nasa.gov

  • "Horizon Online Ephemeris System for Pluto Barycenter". JPL Horizons On-Line Ephemeris System @ Solar System Dynamics Group. Retrieved January 16, 2011.

nih.gov

pubmed.ncbi.nlm.nih.gov

science.org

thecochranelibrary.com

web.archive.org

worldcat.org

search.worldcat.org