In the left-hand column of the Google Calendar main view,
click the arrow to the right of "Other calendars" and click "Add by URL". In the form that appears, paste in the URL from the box above, and click the button to confirm.
Please note, it may take a while for newly created events in TeSS to synchronise with your Google Calendar.
Subscribe to Filter
Importing into RSS reader
Import the feed URL into your RSS reader to keep up to date with new events matching your filters.
For more information about RSS, see this page.