User talk:193.240.172.75

June 2021
Hello, I'm Materialscientist. I noticed that you made an edit to a biography of a living person, Karl Ley, but you didn’t support your changes with a citation to a reliable source. Wikipedia has a strict policy concerning how we write about living people, so please help us keep such articles accurate. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thank you. Materialscientist (talk) 13:48, 29 June 2021 (UTC)