General ⇒ references across multiple articles

[textonic]

Hi,

I am splitting a long paper latex into two parts. I intend to end up with two completely independent papers, possibly for different journals. However, the second will have many references to statements in the first, currently handled with

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\label

and

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 \ref

since it is still all one file.

I would like to have the second paper use the "aux" file of the first (or some such trick) in order to be able to keep references up-to-date as the first paper keeps being edited.

For instance, I was thinking of coding some sort of macro as follows -- but am hoping for better advice (or help coding this idea).

Let's say I have two papers "paper1.tex" and "paper2.tex". Let's assume further that in my bibtex database I gave the label

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my_paper1

to refer to the publication that will result of paper1. Now let's say "paper1.tex" contains somewhere

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\label{cool_theorem}

. I was envisioning a macro like

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\specialref{cool_theorem}

that would, if called in "paper2.tex", look up the file "paper1.aux", find that

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cool_theorem

refers to, say,

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3.14

and would then produce the effect of an ordinary

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\cite[3.14]{my_paper1}

Anybody can help me with that? Or with a better idea? Or better yet, is this already supported?

Many thanks!
P.S. this is my first post here

TexTonic

[textonic]

Follow-up: I figured out the following ad hoc fix; it is not great so suggestions are still welcome...

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\makeatletter
\input{paper1.aux}
\makeatother
\newcommand{\specialref}[1]{\ref{#1} in~\cite{my_paper1}}

(code in the preamble).

[Juanjo]

It seems that the xr package is what you are searching for.

[textonic]

Thank you very much!