TeX is a powerful typesetting system and popular in scientific publishing due to the superior typesetting of mathematical formulae. The software is published under a permissive Open Source license and offers a rich ecosystem of packages that extend its functionality. LaTeX, a macro system built on top of TeX, provides descriptive commands for common layout elements and simplifies the use of TeX. Although XML and LaTeX are both markup languages, there are several limitations that make it difficult for converting XML to LaTeX. This paper describes common problems, presents existing software solutions and introduces a declarative approach for transforming XML to LaTeX.