User talk:2409:4071:201D:CB52:ACEA:F959:2972:DACE

July 2020
Hello, I'm P,TO 19104. I noticed that you added or changed content in an article, Ubiquitous computing, 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 the tutorial on citing sources. If you think I made a mistake, you can leave me a message on my talk page. Thank you. P,TO 19104 (talk) (contribs) 16:17, 27 July 2020 (UTC)
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