BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
BEGIN:VEVENT
DTSTAMP:20260628T060917Z
UID:a12e5f91-4b11-445a-99af-46df893f2a7d
DTSTART:20150129T000000Z
DTEND:20150129T000000Z
SUMMARY:First Steps with UNIX
URL;VALUE=URI:http://edu.isb-sib.ch/course/view.php?id=191
END:VEVENT
END:VCALENDAR