# How to reference sections, equations, and figures in a separate document (e.g., supplemental information)?

I have a main document (manuscript) and a supplemental document.

I wonder if there is a way that I can "link" the two (make them recognize each other) so that section, equation, and figure references across documents are recognized?

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–  Danie Els Apr 25 '12 at 14:31
possible duplicate how-to-reference-another-document-in-latex –  cmhughes Apr 25 '12 at 14:40
Yes, looks that way. Thanks. –  crippledlambda Apr 25 '12 at 19:48

The xr package is probably what you need.
And also xr-hyper if hyperref is needed. –  egreg Apr 25 '12 at 14:31