Hi! I'm a PhD former mathematics graduate student, once at UCLA. My username is a joke from this xkcd comic.
I edited some pages (typically train- or mathematics-related) before making an account, so my "User Contributions page" doesn't show all my work here. My recent work (since ~2022) has focused on chemistry-related topics, although I expect to return to mathematical contributions in the future.
I don't think Ropp, Richard C. (2013). Encyclopedia of the alkaline earth compounds. Amsterdam: Elsevier. ISBN978-0-444-59550-8. copies from Wikipedia. One particular trouble is in the article on magnesium iodide. Ropp appears to mangle our discussion of (Z) alkenes in the MBH reaction, saying: "Usage of magnesium iodide in the 'Baylis–Hillman' reaction...tends to give vinyl-specific compounds." But he also spends a few sentences on some carbohydrate chemistry which doesn't appear on the magnesium iodide page. So I think he's just reading the same sources, plus others.
(I'm still annoyed that he thinks cutting footnotes for space is appropriate, though.)
I take it back. There are just way too many instances of word-for-word COPYVIO for this to be Wikipedia's fault. Shame on you, Richard Ropp, shame on you!