Wikipedia is notoriously untrustworthy. When I was giving seminars to university students on the most accurate and productive ways of using the internet for research, I recommended to them that they didn't touch Wikipedia with a bargepole.

I used to ask them what proportion of the files on the internet was freely readable and available by using a web browser like Firefox. Their answer was inevitably something huge, like 90%+. The true answer is more like 10%, believe it or not, with the remaining 90% being absolutely private or available only by payment. My university paid in the region of £300,000 per annum for online access to thousands of academic journals, the contents of which were available only through subscription. That may have changed slightly with time.

End of my thread drift.