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We hope that you choose to become a Wikipedian and create an account. Feel free to ask me any questions you may have on my talk page. By the way, make sure to sign and date your comments with four tildes (~~~~).--D-Boy 17:14, 18 November 2006 (UTC)
Hello, I'm DVdm. I noticed that you made a change to an article, Frame of reference, but you didn't provide a reliable source. It's been removed for now, but if you'd like to include a citation and re-add it, please do so! If you need guidance on referencing, please see the referencing for beginners tutorial, or if you think I made a mistake, you can leave me a message on my talk page. Thank you. - DVdm (talk) 14:48, 8 October 2013 (UTC)
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