+\usepackage[X2,T1]{fontenc} % Font encoding
+\usepackage{ifxetex}
+\ifxetex%
+ \usepackage{amsmath} % extra math
+ \usepackage{fontspec}
+ \usepackage{polyglossia}
+ \setmainlanguage[variant=british]{english}
+ \setotherlanguage{dutch}
+ \setotherlanguage{russian}
+ \newfontfamily{\cyrillicfont}{Liberation Serif}
+\else
+ \usepackage{lmodern} % Nicer font
+ \usepackage{microtype} % Better kerning
+ \usepackage{amsmath} % extra math
+ \usepackage{amssymb} % extra math symbols
+
+ \usepackage[dutch,russian,british]{babel}
+% \babelfont[russian]{rm}{Liberation Serif}
+\fi