*[http://www.symbos.de SymbOS homepage]
*[http://www.symbos.de/download/20250131-V40/SymbOS-40-Manual.pdf SymbOS installation and user manual (PDF)]
*[http://groups.yahoo.com/group/symbos8bit SymbOS mailing list (new)]
*[http://en.wikipedia.org/wiki/SymbOS english Wikipedia article]