Since there appears to be an encyclopedia for almost any topic you can imagine, then why rely on Wikipedia?
In fact, most professors won't allow you to use Wikipedia.
Most academic disciplines have at least one "authoritative" or "standard" reference work that is recognized as being important by everyone familiar with the discipline.
Below are several examples of these that we own as e-books. A complete A to Z list of e-book encyclopedias is available on the library's home page.
A good researcher will know to use these as starting points.