TeX - LaTeX Stack Exchange is a question and answer site for users of TeX, LaTeX, ConTeXt, and related typesetting systems. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I suspect the title doesn't really do justice to my question, so let me try to explain a bit more carefully. I have a couple of situations now where I'm working simultaneously on closely linked papers that refer to each other a lot. So, Paper 2 will have many citations like [Paper 1, Proposition 4.7].

Now, within one file, LaTeX deals brilliantly with referring to other parts of the same document in a way that is dynamic; if I move things so that Proposition 4.7 becomes Proposition 7.1, within the same document, things will change automatically. Is there any way to set things up so this will happen in Paper 2 when I move things in Paper 1?

share|improve this question
User the xr package (or xr-hyper), have a look at How to reference another document in LaTeX. – Stefan Kottwitz Apr 15 '11 at 22:34
up vote 10 down vote accepted

You can use \label/\ref to external documents using the xr and xr-hyper packages.

share|improve this answer
Brilliant. Thanks much, and apologies for the redundant question. – Ben Webster Apr 16 '11 at 0:05

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.