User talk:193.57.121.135

March 2019
Hello, I'm HickoryOughtShirt?4. I noticed that you added or changed content in an article, Otto Trefný, 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. 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. HickoryOughtShirt?4 (talk) 21:57, 19 March 2019 (UTC)