User talk:Ulfahl

May 2015
Hello, I'm Iryna Harpy. I noticed that you recently removed some content from Soviet–Japanese border conflicts without explaining why. In the future, it would be helpful to others if you described your changes to Wikipedia with an accurate edit summary. If this was a mistake, don't worry; I restored the removed content. If you would like to experiment, please use the sandbox. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. Iryna Harpy (talk) 06:58, 8 May 2015 (UTC)

December 2015
Hello, I'm Yopie. I noticed that you made a change to an article, 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. Yopie (talk) 16:02, 25 December 2015 (UTC)

Recent edit to Viktor Zemskov
Please do not add or change content without citing a reliable source. Please review the guidelines at Citing sources and take this opportunity to add references to the article. Thank you. Materialscientist (talk) 23:07, 25 December 2015 (UTC)

Copyright violations
One of your recent edits has been removed in whole or in part, as it appears to have added copyrighted material to Wikipedia without evidence of permission from the copyright holder. If you are the copyright holder, please read Donating copyrighted materials for more information on uploading your material to Wikipedia. For legal reasons, Wikipedia cannot accept copyrighted material, including text or images from print publications or from other websites, without an appropriate and verifiable license. All such contributions will be deleted. You may use external websites or publications as a source of information, but not as a source of content, such as sentences or images&mdash;you must write using your own words. Wikipedia takes copyright very seriously, and persistent violators of our copyright policy will be blocked from editing. See Copying text from other sources for more information. Specifically, these edits: which were copied from  respectively. &#8209;&#8209;Volteer1 (talk) 06:47, 5 May 2021 (UTC)