User talk:Achandrasekaran99
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April 2015
Hello, I'm DVdm. I noticed that you made a change to an article, Derivations of the Lorentz transformations, but you didn't provide a source. I’ve removed it for now, but if you’d like to include a citation to a reliable source and re-add it, please do so! If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. DVdm (talk) 18:33, 30 April 2015 (UTC)