User talk:2600:1700:20C0:A190:7D90:4323:E181:521

May 2020
Hello, I'm BilCat. I noticed that you added or changed content in an article, Avia S-199, 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. BilCat (talk) 03:23, 19 May 2020 (UTC)
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