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GNU Info (reftex)xr (LaTeX package)`xr': Cross-Document References =============================== The LaTeX package `xr' makes it possible to create references to labels defined in external documents. The preamble of a document using `xr' will contain something like this: \usepackage{xr} \externaldocument[V1-]{volume1} \externaldocument[V3-]{volume3} and we can make references to any labels defined in these external documents by using the prefixes `V1-' and `V3-', respectively. RefTeX can be used to create such references as well. Start the referencing process normally, by pressing `C-c )'. Select a label type if necessary. When you see the label selection buffer, pressing `x' will switch to the label selection buffer of one of the external documents. You may then select a label as before and RefTeX will insert it along with the required prefix. For this kind of inter-document cross-references, saving of parsing information and the use of multiple selection buffers can mean a large speed-up (Note: Optimizations). |