User talk:2001:1C00:141E:7A00:6449:8119:C71F:7A7B

March 2023
Hello, I'm Materialscientist. I noticed that you made a change to an article, Hannes Van Dahl, 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. Materialscientist (talk) 11:57, 20 March 2023 (UTC)