You now have 3 choices
  1. Subscribe to the following URL in your favorite calendar program*.
    Updates will appear when they are changed on the university website (dont forget to 'refresh' the calendar in your app), BUT you wont be able to edit the calendar.
  2. Download the calendar file and import it into your calendar program*.
    You will be able to edit the calendar, BUT any changes to the university calendar won't appear in your calendar.
    You will probably need to rename the calendar file from .php to .ics before you import it.
  3. ...or just visit the original website calendar here. If you must.
*Here's a list of apps that support this calendar format.