BEGIN:VCALENDAR VERSION:2.0 PRODID:-//TYPO3/NONSGML Calendar Base (cal) V1.11.1//EN METHOD:PUBLISH BEGIN:VEVENT UID:www.npv-info.de_1_10 DTSTAMP:20130920T192327 DTSTART;VALUE=DATE:20081225 DTEND;VALUE=DATE:20081226 SUMMARY:1. Weihnachtsfeiertag RRULE:FREQ=YEARLY;INTERVAL=1;COUNT=50;BYMONTH=12;BYMONTHDAY=25 END:VEVENT END:VCALENDAR