Template:Mathworld/doc

Usage
links to https://mathworld.wolfram.com/ url .html (titlecase with with spaces removed), and references the page name as name. The second argument will default to the value of the first argument when not provided.

There is also an additional  parameter which will default to Eric W. Weissstein who is the author of the vast majority of pages on mathworld. The bottom of every mathworld page will indicate how to cite it. Take the author parameter from there if it is not Eric W. Weissstein.