4.13.16 unicode

Import this package at the beginning of the file to instruct LaTeX to accept unicode (UTF-8) standardized international characters. You will also need to set up LaTeX support for unicode by unpacking in your LaTeX source directory (e.g. /usr/share/texmf/tex/latex) the file

http://www.unruh.de/DniQ/latex/unicode/unicode.tgz

and then running the command

texhash

To use cyrillic fonts, you will need to change the font encoding:

import unicode;
texpreamble("\usepackage{mathtext} \usepackage[russian]{babel}");
defaultpen(font("T2A","cmr"));