Lexikas

Wikipedia (http://de.wikipedia.org/wik/Hauptseite)
Fundus - Referate (http://www.fundus.org/)

Translator

Google Translator (http://www.google.ch/language_tools?hl=de)
Leo.org (http://www.leo.org)
TU Chemnitz (http://dict.tu-chemnitz.de)


What words can be used?

Chart of Transition Signals