User talk:2409:4042:2E91:D393:BC5A:20A4:7352:7676

September 2020
Hello, I'm S0091. I noticed that you added or changed content in an article, Russian Sleep Experiment, but you didn't provide a reliable source. It's been removed and archived in the page history for now, but if you'd like to include a citation and re-add it, please do so. You can have a look at the tutorial on citing sources. If you think I made a mistake, you can leave me a message on my talk page. Thank you. S0091 (talk) 17:30, 12 September 2020 (UTC)
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