Formación Cerrejón (Spanish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Formación Cerrejón" in Spanish language version.

refsWebsite
Global rank Spanish rank
2nd place
2nd place
18th place
34th place
4th place
4th place
1st place
1st place
921st place
955th place
1,293rd place
471st place
167th place
98th place
7,275th place
7,129th place
6th place
5th place
340th place
355th place
low place
low place

archive.org

doi.org

dx.doi.org

harvard.edu

adsabs.harvard.edu

mining-technology.com

nih.gov

ncbi.nlm.nih.gov

pbworks.com

mkatti-classes.pbworks.com

pnas.org

si.edu

stri.si.edu

ufl.edu

flmnh.ufl.edu

news.ufl.edu

usgs.gov

pubs.usgs.gov

  • Tewalt, S. J.; Finkelman, R. B.; Torres, I. E.; Simoni, F. (2006). «World Coal Quality Inventory: Colombia». En Alex W. Karlsen, Susan J. Tewalt, Linda J. Bragg, and Robert B. Finkelman (eds.), ed. World Coal Quality Inventory: South America. U.S. Geological Survey Open File Report 2006 (1241). United States Geological Survey. pp. 132-157. 

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