User talk:2001:5B0:4FD1:AC98:F403:8A68:921D:6C0

Recent edit to Paul Dessau
Hello, and welcome to Wikipedia. I noticed that you made a change to an article, Paul Dessau, but you didn't provide a reliable source. It's been removed for now, but if you'd like to include a citation and re-add it, please do so! If you need guidance on referencing, please see the referencing for beginners tutorial, or if you think I made a mistake, you can leave me a message on my talk page. Thank you! Materialscientist (talk) 14:40, 20 February 2020 (UTC)