What exactly is with the Wikipedia warning at the top of the article? It looks like quite a bit of references at the bottom?
Maybe it was never reviewed for obsolence. Or maybe two sources in the reference section aren't enough. Either way, there are only two direct references in the article body, which seems lacking. I'd assume the last two paragraphs could use some citations and sources.
There are only two references (though there are several external links). It looks like only the first paragraph has specific citations, and the two other paragraphs have no citations at all.