All the illustrations in the documents on were created as vector-drawings using the open-source program, Inkscape.

You can download the current version here.

The program includes a few very helpful tutorials. Further help is available free on the internet.

Learning Programs:

Tutorials with Screencasts: (deutschsprachig)


Everyone is invited, as far as possible, to create publicity for our website. For example:

  • Add a link on your own website.
  • Mention us in an article in print or online.
  • Pointing related organizations and companies to our website

We can accept e-mail attachments up to 10MB at This email address is being protected from spambots. You need JavaScript enabled to view it.
Larger files can be uploaded via a FTP server, or sent as a data CD to the following address:

Martin Graf
Rösslimattstrasse 39
Postfach 4358
6002 Luzern

From there, the documents will be:

  • inspected and filtered
  • formatted to an identical layout
  • made available for download
  • circulated in a newsletter