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Coal ball (Simple English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Coal ball" in Simple English language version.

Last modified:

Ref.Un. Ref.Website
Global rank Simple English rank
32royalsocietypublishing.org
1,880th place
742nd place
32web.archive.org
1st place
1st place

royalsocietypublishing.org (Global: 1,880th place; Simple English: 742nd place)

rstb.royalsocietypublishing.org

  • Stopes, Marie C.; Watson, D.M.S. 1909. On the present distribution and origin of the calcareous concretions in coal seams, known as 'coal balls'. Philosophical Transactions of the Royal Society 200 (262–273): 167–218. Archived 2016-03-05 at the Wayback Machine
  • Scott, Andrew C. & Rex G. 1985. The formation and significance of Carboniferous coal balls. Philosophical Transactions of the Royal Society. B 311 (1148): 123–137. Archived 2016-03-15 at the Wayback Machine

web.archive.org (Global: 1st place; Simple English: 1st place)

  • Stopes, Marie C.; Watson, D.M.S. 1909. On the present distribution and origin of the calcareous concretions in coal seams, known as 'coal balls'. Philosophical Transactions of the Royal Society 200 (262–273): 167–218. Archived 2016-03-05 at the Wayback Machine
  • Scott, Andrew C. & Rex G. 1985. The formation and significance of Carboniferous coal balls. Philosophical Transactions of the Royal Society. B 311 (1148): 123–137. Archived 2016-03-15 at the Wayback Machine