User talk:YahanYang123

December 2023
Hello, I'm CurryTime7-24. I noticed that you added or changed content in an article, Galina Ustvolskaya, 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 referencing for beginners. If you think I made a mistake, you can leave me a message on my talk page. ''In addition, there was no need to amend the article's previously existing citation style. Please read WP:CITESTYLE for more information.'' CurryTime7-24 (talk) 03:49, 10 December 2023 (UTC)

The content you added was copied from another website, and thus was a violation of Wikipedia's copyright policy. Please don't add copyright material to Wikipedia. — Diannaa (talk) 00:03, 11 December 2023 (UTC)

Please do not add or change content, as you did at Galina Ustvolskaya, without citing a reliable source. Please review the guidelines at Citing sources and take this opportunity to add references to the article. Thank you. CurryTime7-24 (talk) 04:41, 11 December 2023 (UTC)