English is the standard language for science, period.
I study electronic engineering, in Italy. As I go on I find always that most of the informations I need are written in English, and that's not a problem, at least for me.
Anyway, every paper in every scientific journal is in English, it could be math, electronics, physics and programming! Everything you read about science in a language that is not English is old. Research is done in English.
And last but not least, is there someone of you who prefer the localized version of the DD handbook?
At least English is easier than Latin