The document derives from a German introduction (‘lkurz’), which was translated and updated; it continues to be updated.

This translation has, in its turn, been translated into Finnish, French, German, Italian, Japanese, Korean, Mongolian, Persian (Farsi), Polish, Portuguese, Brazilian Portuguese, Russian, Slovak, Slovenian, Spanish and Ukranian.

Not all translations are of the current English version, of course.

The author is Tobias Oetiker.