BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//gyrobase/iCalendar//NONSGML v1.0//EN
BEGIN:VEVENT
DTSTART:20130101
RRULE:FREQ=WEEKLY;INTERVAL=1;UNTIL=20140518;BYDAY=TU
SUMMARY:Bluesy Tuesday
END:VEVENT
END:VCALENDAR