User talk:5.67.104.10

September 2021
Hello, I'm 205.154.245.36. I noticed that you added or changed content in an article, Ernst Abbe, 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. Thank you. 205.154.245.36 (talk) 17:54, 16 September 2021 (UTC)