Subscription URLs
Apple iCal.app
Personal Calendar:
Team Calendars:
KOrganizer/Mozilla Calendar
Personal Calendar
Team Calendars

Installation Instructions
Outlook
Download the ZideLook Plugin for Outlook and install it.
Add it to your mail services and enter the server information, your login and your password.
Evolution
Download, install and register the Ximian Connector plugin. Add a new mail account, enter your credentials and choose plain password authentication.
iCal
Simply click on of the iCal URLs shown above to subscribe to the respective service.
Enter your credentials and press Subscribe.
KOrganizer/Mozilla Calendar
Open one of the URLs shown above in the app, you will be asked for your credentials afterwards.