Designing Multilingual Documents: Some Principles, Observations, and Guidelines  

This paper summarizes some basic problems associated with designing, producing, and delivering multiple languages within one document, and our approach to resolving those problems, 'Multilingual in this context is defined as containing one or more languages within a page design, as opposed to 'internationalized' (containing universal symbolic or pictorial text) or 'serially translated' (repeated translated content) documents.

Lorence, Paul. STC Proceedings (1995). Articles>Language>Localization