BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Make a Calendar//Week Number//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
UID:mac-week-1971-W13@make-a-calendar.com
DTSTAMP:20260920T154315Z
DTSTART;VALUE=DATE:19710329
DTEND;VALUE=DATE:19710405
SUMMARY:ISO Week 13, 1971
DESCRIPTION:Monday–Sunday · 1971-W13 · Mar 29 – Apr 4, 1971
URL:https://make-a-calendar.com/week-number/1971/13
END:VEVENT
END:VCALENDAR