Subscribe to Academic Calendar with Google Calendar
Open your Google Calendar
After "Other Calendars" select the "More options..." menu (square with the triangle in it).
Select "Add by URL" in the menu that appears
Paste this URL: http://www.google.com/calendar/ical/d.umn.edu_09rg16mtp42dttouivnalogerc%40group.calendar.google.com/public/basic.ics
into the URL field of the dialog window and click "Add Calendar". The URL is quite long so make sure you've gotten the entire string and there are no spaces in it.