Lumen method (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Lumen method" in English language version.

refsWebsite
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casyoo.com

lightcalc.com

  • "Light Calc". Glossary. Archived from the original on 2008-03-16. Retrieved 2008-03-20.

web.archive.org

  • "Light Calc". Glossary. Archived from the original on 2008-03-16. Retrieved 2008-03-20.