User talk:45.59.37.144

March 2019
Hello, I'm Donner60. I noticed that you made a change to an article, P.G. Sittenfeld, 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. Donner60 (talk) 03:37, 14 March 2019 (UTC)
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