Localization of Single-Source Content 
One of the key motivators of adopting a single-source approach for documentation is the potential cost savings available through the reduced cost of translation. By consolidating multiple documents, version updates, and similar products, translations may be leveraged across components. By creating single-source content with translation in mind, authors are able to create documents that are easy to localize, increase consistency, and reduce costs. The article below provides a summary of the translation benefits of single-sourcing and offers advice for designing a single-source strategy from a localization perspective.
Jones, Adam. STC Proceedings (2002). Design>Language>Localization>Content Management