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Hefner lamp (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Hefner lamp" in English language version.

refsWebsite
Global rank English rank
1sizes.com
9,666th place
8,100th place

sizes.com (Global: 9,666th place; English: 8,100th place)

  • "Hefner unit, or Hefner candle". Sizes.com. 30 May 2007. Retrieved 25 Feb 2009.